在 DialogFragment 的 ImageView 上使用 setImageResource() 时如何减少内存消耗？
How to reduce memory consumption when using setImageResource() on an ImageView in a DialogFragment?
据我所见，内存使用量可能减半，但这似乎还不够。我的案例与引用的案例一样，涉及将可绘制对象加载到 ImageView 中。每个可绘制对象小于 20kb，但使用约 15mb 的内存来加载。为什么会占用这么多内存？如何将内存消耗减少一半以上？或者，我应该将对话框放在它自己的 activity 而不是片段中吗？
对话框片段Class
public class CollectableDialogFragment extends DialogFragment {
public static final String LOG_TAG = CollectableDialogFragment.class.getSimpleName();
/*Constants for setting Bundle keys that will be passed to this fragment*/
public static final String SQLITE_DATA = "sqliteData";
public static final String FIREBASE_DATA = VideoGame.KEY_UNIQUE_NODE_ID;
private Context context;
/*Object containing video game's data*/
private VideoGame videoGame;
/*Instantiated views*/
private View view;
private ImageView usaFlag;
private ImageView japanFlag;
private ImageView euFlag;
private ImageView game;
private ImageView manual;
private ImageView box;
private CustomEditText noteEditText;
/*Initialize contentProviderBundle and componentsOwned, and handle clicking*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.i(LOG_TAG, "Entered DialogFragment!");
if (getArguments() != null) {
/*Handles adding new item to collection*/
if (getArguments().containsKey(SQLITE_DATA)) {
/*Extract Hashmap containing video game's data*/
HashMap<String, String> contentProviderBundle = (HashMap<String, String>) getArguments().getSerializable(SQLITE_DATA);
/*Set VideoGame's values*/
videoGame = new VideoGame(contentProviderBundle.get(VideoGame.KEY_UNIQUE_ID),
contentProviderBundle.get(VideoGame.KEY_CONSOLE),
contentProviderBundle.get(VideoGame.KEY_TITLE),
contentProviderBundle.get(VideoGame.KEY_LICENSEE),
contentProviderBundle.get(VideoGame.KEY_RELEASED),
Integer.valueOf(contentProviderBundle.get(VideoGame.KEY_COPIES_OWNED)));
/*Express user has not indicated ownership of any components*/
videoGame.setValueGame(false);
videoGame.setValueManual(false);
videoGame.setValueBox(false);
} else if (getArguments().containsKey(FIREBASE_DATA)) {
/*Handles editing a collected item*/
videoGame = new VideoGame();
for (String key : getArguments().keySet()) {
if (key == VideoGame.KEY_COMPONENTS_OWNED) {
/*Extract serialized HashMap*/
videoGame.setValuesComponentsOwned((HashMap<String, Boolean>) getArguments().getSerializable(VideoGame.KEY_COMPONENTS_OWNED));
}
switch (key) {
case VideoGame.KEY_UNIQUE_NODE_ID:
videoGame.setValueUniqueNodeId(getArguments().getString(VideoGame.KEY_UNIQUE_NODE_ID));
break;
case VideoGame.KEY_CONSOLE:
videoGame.setValueConsole(getArguments().getString(VideoGame.KEY_CONSOLE));
break;
case VideoGame.KEY_TITLE:
videoGame.setValueTitle(getArguments().getString(VideoGame.KEY_TITLE));
break;
case VideoGame.KEY_REGION_LOCK:
videoGame.setValueRegionLock(getArguments().getString(VideoGame.KEY_REGION_LOCK));
break;
case VideoGame.KEY_NOTE:
videoGame.setValueNote(getArguments().getString(VideoGame.KEY_NOTE));
break;
default:
Log.i(LOG_TAG, "Case 'default' is running");
break;
}
}
}
}
}
/*Inflate the layout to use as dialog or embedded fragment*/
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
view = inflater.inflate(R.layout.activity_collectable_dialog, container, false);
/*Set string for Toolbar's title*/
String toolbarTitle = setToolbarTitle();
/*Find Toolbar*/
Toolbar toolbar = (Toolbar) view.findViewById(R.id.toolbar);
/*Sets toolbar as ActionBar*/
((AppCompatActivity) getActivity()).setSupportActionBar(toolbar);
/*Set toolbar's title*/
toolbar.setTitle(toolbarTitle);
/*Enable home button and supply a custom icon*/
ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
if (actionBar != null) {
/*Show custom drawable for up icon*/
actionBar.setHomeAsUpIndicator(R.drawable.ic_clear_black_24dp);
actionBar.setDisplayHomeAsUpEnabled(true);
}
/*Initialize views*/
noteEditText = (CustomEditText) view.findViewById(R.id.activity_collectable_customedittext_notes);
handleButtons(container);
/*Populate views if possible*/
if (videoGame.getValueRegionLock() != null) {
clickRegionLock(videoGame.getValueRegionLock());
}
if (videoGame.getValueNote() != null && videoGame.getValueNote() != "") {
populateNote(videoGame.getValueNote());
}
int componentsClicked = clickComponentsOwned();
Log.i(LOG_TAG, componentsClicked + " componenets were clicked");
/*Report that this fragment would like to participate in populating the options menu by
receiving a call to onCreateOptionsMenu(Menu, MenuInflater) and related methods.*/
setHasOptionsMenu(true);
return view;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
/*Causes dialog to cover whole screen*/
Dialog dialog = super.onCreateDialog(savedInstanceState);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
return dialog;
}
/*Inflates activity_collectable_dialog_menu as the actionbar*/
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.activity_collectable_dialog_menu, menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
switch (id) {
case R.id.activity_collectable_dialog_action_save:
if (videoGame.getValueUniqueNodeId() == null) {
setDate();
setNote();
videoGame.createNode();
/*Updated number of copes owned*/
int updatedCopies = videoGame.getValueCopiesOwned() + 1;
/*Key value pair used for updating database*/
ContentValues sqliteUpdate = new ContentValues();
sqliteUpdate.put(VideoGamesEntry.COLUMN_COPIES_OWNED, String.valueOf(updatedCopies));
/*Update SQLite database*/
int rowsUpdate = getContext().getContentResolver().update(VideoGamesEntry.CONTENT_URI, sqliteUpdate,
VideoGamesEntry.COLUMN_UNIQUE_ID + "=" + videoGame.getValueUniqueID(),
null);
Log.i(LOG_TAG, "Rows updated: " + rowsUpdate);
} else {
setNote();
videoGame.updateNode();
dismiss();
break;
}
case android.R.id.home:
// Make sure to confirm discard of data if data was input
dismiss();
break;
}
return super.onOptionsItemSelected(item);
}
/*Head method for handling the dialog's buttons*/
private void handleButtons(ViewGroup container) {
/*Initialization of every ImageView on activty_add_collectable_dialog.xml for programmatic use*/
usaFlag = (ImageView) view.findViewById(R.id.activity_collectable_image_usa);
japanFlag = (ImageView) view.findViewById(R.id.activity_collectable_image_japan);
euFlag = (ImageView) view.findViewById(R.id.activity_collectable_image_european_union);
game = (ImageView) view.findViewById(R.id.activity_collectable_image_game);
manual = (ImageView) view.findViewById(R.id.activity_collectable_image_manual);
box = (ImageView) view.findViewById(R.id.activity_collectable_image_box);
setImageResources();
/*ArrayList of all icons*/
ArrayList<ImageView> imageViews = new ArrayList<>();
imageViews.add(usaFlag);
imageViews.add(japanFlag);
imageViews.add(euFlag);
imageViews.add(game);
imageViews.add(manual);
imageViews.add(box);
setButtonTintInactive(imageViews);
setRegionLock(usaFlag, japanFlag, euFlag);
setCartridgeIcon();
setComponentsOwned(game, manual, box);
}
/*Set image resource for all ImageViews except R.id.activity_collectable_image_game*/
private void setImageResources() {
usaFlag.setImageResource(R.drawable.flag_usa);
japanFlag.setImageResource(R.drawable.flag_japan);
euFlag.setImageResource(R.drawable.flag_european_union);
manual.setImageResource(R.drawable.video_game_manual_icon);
box.setImageResource(R.drawable.box_icon);
}
对话框布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorDarkBackground"
android:paddingBottom="16dp">
<include
android:id="@+id/activity_collectable_dialog_toolbar"
layout="@layout/toolbar_actionbar" />
<com.example.android.gamecollector.customviews.CustomTextView
android:id="@+id/activity_collectable_text_region_lock"
xmlns:roboto="http://schemas.android.com/apk/com.example.customviews.CustomTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/activity_collectable_dialog_toolbar"
android:layout_marginLeft="24dp"
android:text="@string/region_lock"
android:textSize="16sp"
android:textColor="@color/colorDarkPrimaryText"
roboto:typeface="roboto_bold.ttf" />
<ImageView
android:id="@+id/activity_collectable_image_usa"
android:layout_width="30dp"
android:layout_height="24dp"
android:layout_below="@id/activity_collectable_text_region_lock"
android:layout_marginTop="36dp"
android:layout_marginLeft="40dp"
android:tint="@color/colorInactiveIcon" />
<ImageView
android:id="@+id/activity_collectable_image_japan"
android:layout_width="36dp"
android:layout_height="24dp"
android:layout_below="@id/activity_collectable_text_region_lock"
android:layout_toRightOf="@id/activity_collectable_image_usa"
android:layout_marginTop="36dp"
android:layout_marginLeft="36dp"
android:tint="@color/colorInactiveIcon" />
<ImageView
android:id="@+id/activity_collectable_image_european_union"
android:layout_width="33dp"
android:layout_height="24dp"
android:layout_below="@id/activity_collectable_text_region_lock"
android:layout_toRightOf="@id/activity_collectable_image_japan"
android:layout_marginTop="36dp"
android:layout_marginLeft="36dp"
android:tint="@color/colorInactiveIcon" />
<View
android:id="@+id/activity_collectable_divider_1"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_below="@id/activity_collectable_image_usa"
android:layout_marginTop="16dp"
android:layout_marginBottom="16dp"
android:layout_marginRight="24dp"
android:layout_marginLeft="24dp"
android:background="@color/colorDarkDividers"/>
<com.example.android.gamecollector.customviews.CustomTextView
android:id="@+id/activity_collectable_text_components_owned"
xmlns:roboto="http://schemas.android.com/apk/com.example.customviews.CustomTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/activity_collectable_divider_1"
android:layout_marginBottom="24dp"
android:layout_marginLeft="24dp"
android:text="@string/components_owned"
android:textSize="16sp"
android:textColor="@color/colorDarkPrimaryText"
roboto:typeface="roboto_bold.ttf" />
<!--Cartridge icon will be programmatically chosen-->
<ImageView
android:id="@+id/activity_collectable_image_game"
android:layout_width="36dp"
android:layout_height="24dp"
android:layout_marginLeft="40dp"
android:layout_below="@id/activity_collectable_text_components_owned"
android:tint="@color/colorInactiveIcon"
tools:src="@drawable/gameboy_cartridge_icon"/>
<ImageView
android:id="@+id/activity_collectable_image_manual"
android:layout_width="22dp"
android:layout_height="24dp"
android:layout_marginLeft="36dp"
android:layout_below="@id/activity_collectable_text_components_owned"
android:layout_toRightOf="@id/activity_collectable_image_game"
android:tint="@color/colorInactiveIcon"/>
<ImageView
android:id="@+id/activity_collectable_image_box"
android:layout_width="23dp"
android:layout_height="24dp"
android:layout_marginLeft="36dp"
android:layout_below="@id/activity_collectable_text_components_owned"
android:layout_toRightOf="@id/activity_collectable_image_manual"
android:tint="@color/colorInactiveIcon"/>
<View
android:id="@+id/activity_collectable_divider_2"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_below="@id/activity_collectable_image_game"
android:layout_marginTop="16dp"
android:layout_marginBottom="16dp"
android:layout_marginRight="24dp"
android:layout_marginLeft="24dp"
android:background="@color/colorDarkDividers"/>
<com.example.android.gamecollector.customviews.CustomTextView
android:id="@+id/activity_collectable_text_notes"
xmlns:roboto="http://schemas.android.com/apk/com.example.customviews.CustomTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/activity_collectable_divider_2"
android:layout_marginBottom="8dp"
android:layout_marginLeft="24dp"
android:text="@string/notes"
android:textSize="16sp"
android:textColor="@color/colorDarkPrimaryText"
roboto:typeface="roboto_bold.ttf" />
<!--Make sure hint and typed text have appropriate typeface, weight, size, and color-->
<com.example.android.gamecollector.customviews.CustomEditText
android:id="@+id/activity_collectable_customedittext_notes"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/activity_collectable_text_notes"
android:layout_marginRight="24dp"
android:layout_marginLeft="40dp"
android:hint="@string/notes_hint"/>
</RelativeLayout>
根据屏幕尺寸缩放可绘制对象并将它们放入 drawable-hdpi drawable-mdpi drawable-xhdpi 等文件夹中。你可以使用这个 source。检查 memmory allocation tracking 这些方法。 setImageResource 每张图片最多需要 0.5 MB 的内存。在默认 setImageResource.
之后以编程方式为 ImageViews 添加 tints
据我所见
对话框片段Class
public class CollectableDialogFragment extends DialogFragment {
public static final String LOG_TAG = CollectableDialogFragment.class.getSimpleName();
/*Constants for setting Bundle keys that will be passed to this fragment*/
public static final String SQLITE_DATA = "sqliteData";
public static final String FIREBASE_DATA = VideoGame.KEY_UNIQUE_NODE_ID;
private Context context;
/*Object containing video game's data*/
private VideoGame videoGame;
/*Instantiated views*/
private View view;
private ImageView usaFlag;
private ImageView japanFlag;
private ImageView euFlag;
private ImageView game;
private ImageView manual;
private ImageView box;
private CustomEditText noteEditText;
/*Initialize contentProviderBundle and componentsOwned, and handle clicking*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.i(LOG_TAG, "Entered DialogFragment!");
if (getArguments() != null) {
/*Handles adding new item to collection*/
if (getArguments().containsKey(SQLITE_DATA)) {
/*Extract Hashmap containing video game's data*/
HashMap<String, String> contentProviderBundle = (HashMap<String, String>) getArguments().getSerializable(SQLITE_DATA);
/*Set VideoGame's values*/
videoGame = new VideoGame(contentProviderBundle.get(VideoGame.KEY_UNIQUE_ID),
contentProviderBundle.get(VideoGame.KEY_CONSOLE),
contentProviderBundle.get(VideoGame.KEY_TITLE),
contentProviderBundle.get(VideoGame.KEY_LICENSEE),
contentProviderBundle.get(VideoGame.KEY_RELEASED),
Integer.valueOf(contentProviderBundle.get(VideoGame.KEY_COPIES_OWNED)));
/*Express user has not indicated ownership of any components*/
videoGame.setValueGame(false);
videoGame.setValueManual(false);
videoGame.setValueBox(false);
} else if (getArguments().containsKey(FIREBASE_DATA)) {
/*Handles editing a collected item*/
videoGame = new VideoGame();
for (String key : getArguments().keySet()) {
if (key == VideoGame.KEY_COMPONENTS_OWNED) {
/*Extract serialized HashMap*/
videoGame.setValuesComponentsOwned((HashMap<String, Boolean>) getArguments().getSerializable(VideoGame.KEY_COMPONENTS_OWNED));
}
switch (key) {
case VideoGame.KEY_UNIQUE_NODE_ID:
videoGame.setValueUniqueNodeId(getArguments().getString(VideoGame.KEY_UNIQUE_NODE_ID));
break;
case VideoGame.KEY_CONSOLE:
videoGame.setValueConsole(getArguments().getString(VideoGame.KEY_CONSOLE));
break;
case VideoGame.KEY_TITLE:
videoGame.setValueTitle(getArguments().getString(VideoGame.KEY_TITLE));
break;
case VideoGame.KEY_REGION_LOCK:
videoGame.setValueRegionLock(getArguments().getString(VideoGame.KEY_REGION_LOCK));
break;
case VideoGame.KEY_NOTE:
videoGame.setValueNote(getArguments().getString(VideoGame.KEY_NOTE));
break;
default:
Log.i(LOG_TAG, "Case 'default' is running");
break;
}
}
}
}
}
/*Inflate the layout to use as dialog or embedded fragment*/
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
view = inflater.inflate(R.layout.activity_collectable_dialog, container, false);
/*Set string for Toolbar's title*/
String toolbarTitle = setToolbarTitle();
/*Find Toolbar*/
Toolbar toolbar = (Toolbar) view.findViewById(R.id.toolbar);
/*Sets toolbar as ActionBar*/
((AppCompatActivity) getActivity()).setSupportActionBar(toolbar);
/*Set toolbar's title*/
toolbar.setTitle(toolbarTitle);
/*Enable home button and supply a custom icon*/
ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
if (actionBar != null) {
/*Show custom drawable for up icon*/
actionBar.setHomeAsUpIndicator(R.drawable.ic_clear_black_24dp);
actionBar.setDisplayHomeAsUpEnabled(true);
}
/*Initialize views*/
noteEditText = (CustomEditText) view.findViewById(R.id.activity_collectable_customedittext_notes);
handleButtons(container);
/*Populate views if possible*/
if (videoGame.getValueRegionLock() != null) {
clickRegionLock(videoGame.getValueRegionLock());
}
if (videoGame.getValueNote() != null && videoGame.getValueNote() != "") {
populateNote(videoGame.getValueNote());
}
int componentsClicked = clickComponentsOwned();
Log.i(LOG_TAG, componentsClicked + " componenets were clicked");
/*Report that this fragment would like to participate in populating the options menu by
receiving a call to onCreateOptionsMenu(Menu, MenuInflater) and related methods.*/
setHasOptionsMenu(true);
return view;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
/*Causes dialog to cover whole screen*/
Dialog dialog = super.onCreateDialog(savedInstanceState);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
return dialog;
}
/*Inflates activity_collectable_dialog_menu as the actionbar*/
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.activity_collectable_dialog_menu, menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
switch (id) {
case R.id.activity_collectable_dialog_action_save:
if (videoGame.getValueUniqueNodeId() == null) {
setDate();
setNote();
videoGame.createNode();
/*Updated number of copes owned*/
int updatedCopies = videoGame.getValueCopiesOwned() + 1;
/*Key value pair used for updating database*/
ContentValues sqliteUpdate = new ContentValues();
sqliteUpdate.put(VideoGamesEntry.COLUMN_COPIES_OWNED, String.valueOf(updatedCopies));
/*Update SQLite database*/
int rowsUpdate = getContext().getContentResolver().update(VideoGamesEntry.CONTENT_URI, sqliteUpdate,
VideoGamesEntry.COLUMN_UNIQUE_ID + "=" + videoGame.getValueUniqueID(),
null);
Log.i(LOG_TAG, "Rows updated: " + rowsUpdate);
} else {
setNote();
videoGame.updateNode();
dismiss();
break;
}
case android.R.id.home:
// Make sure to confirm discard of data if data was input
dismiss();
break;
}
return super.onOptionsItemSelected(item);
}
/*Head method for handling the dialog's buttons*/
private void handleButtons(ViewGroup container) {
/*Initialization of every ImageView on activty_add_collectable_dialog.xml for programmatic use*/
usaFlag = (ImageView) view.findViewById(R.id.activity_collectable_image_usa);
japanFlag = (ImageView) view.findViewById(R.id.activity_collectable_image_japan);
euFlag = (ImageView) view.findViewById(R.id.activity_collectable_image_european_union);
game = (ImageView) view.findViewById(R.id.activity_collectable_image_game);
manual = (ImageView) view.findViewById(R.id.activity_collectable_image_manual);
box = (ImageView) view.findViewById(R.id.activity_collectable_image_box);
setImageResources();
/*ArrayList of all icons*/
ArrayList<ImageView> imageViews = new ArrayList<>();
imageViews.add(usaFlag);
imageViews.add(japanFlag);
imageViews.add(euFlag);
imageViews.add(game);
imageViews.add(manual);
imageViews.add(box);
setButtonTintInactive(imageViews);
setRegionLock(usaFlag, japanFlag, euFlag);
setCartridgeIcon();
setComponentsOwned(game, manual, box);
}
/*Set image resource for all ImageViews except R.id.activity_collectable_image_game*/
private void setImageResources() {
usaFlag.setImageResource(R.drawable.flag_usa);
japanFlag.setImageResource(R.drawable.flag_japan);
euFlag.setImageResource(R.drawable.flag_european_union);
manual.setImageResource(R.drawable.video_game_manual_icon);
box.setImageResource(R.drawable.box_icon);
}
对话框布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorDarkBackground"
android:paddingBottom="16dp">
<include
android:id="@+id/activity_collectable_dialog_toolbar"
layout="@layout/toolbar_actionbar" />
<com.example.android.gamecollector.customviews.CustomTextView
android:id="@+id/activity_collectable_text_region_lock"
xmlns:roboto="http://schemas.android.com/apk/com.example.customviews.CustomTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/activity_collectable_dialog_toolbar"
android:layout_marginLeft="24dp"
android:text="@string/region_lock"
android:textSize="16sp"
android:textColor="@color/colorDarkPrimaryText"
roboto:typeface="roboto_bold.ttf" />
<ImageView
android:id="@+id/activity_collectable_image_usa"
android:layout_width="30dp"
android:layout_height="24dp"
android:layout_below="@id/activity_collectable_text_region_lock"
android:layout_marginTop="36dp"
android:layout_marginLeft="40dp"
android:tint="@color/colorInactiveIcon" />
<ImageView
android:id="@+id/activity_collectable_image_japan"
android:layout_width="36dp"
android:layout_height="24dp"
android:layout_below="@id/activity_collectable_text_region_lock"
android:layout_toRightOf="@id/activity_collectable_image_usa"
android:layout_marginTop="36dp"
android:layout_marginLeft="36dp"
android:tint="@color/colorInactiveIcon" />
<ImageView
android:id="@+id/activity_collectable_image_european_union"
android:layout_width="33dp"
android:layout_height="24dp"
android:layout_below="@id/activity_collectable_text_region_lock"
android:layout_toRightOf="@id/activity_collectable_image_japan"
android:layout_marginTop="36dp"
android:layout_marginLeft="36dp"
android:tint="@color/colorInactiveIcon" />
<View
android:id="@+id/activity_collectable_divider_1"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_below="@id/activity_collectable_image_usa"
android:layout_marginTop="16dp"
android:layout_marginBottom="16dp"
android:layout_marginRight="24dp"
android:layout_marginLeft="24dp"
android:background="@color/colorDarkDividers"/>
<com.example.android.gamecollector.customviews.CustomTextView
android:id="@+id/activity_collectable_text_components_owned"
xmlns:roboto="http://schemas.android.com/apk/com.example.customviews.CustomTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/activity_collectable_divider_1"
android:layout_marginBottom="24dp"
android:layout_marginLeft="24dp"
android:text="@string/components_owned"
android:textSize="16sp"
android:textColor="@color/colorDarkPrimaryText"
roboto:typeface="roboto_bold.ttf" />
<!--Cartridge icon will be programmatically chosen-->
<ImageView
android:id="@+id/activity_collectable_image_game"
android:layout_width="36dp"
android:layout_height="24dp"
android:layout_marginLeft="40dp"
android:layout_below="@id/activity_collectable_text_components_owned"
android:tint="@color/colorInactiveIcon"
tools:src="@drawable/gameboy_cartridge_icon"/>
<ImageView
android:id="@+id/activity_collectable_image_manual"
android:layout_width="22dp"
android:layout_height="24dp"
android:layout_marginLeft="36dp"
android:layout_below="@id/activity_collectable_text_components_owned"
android:layout_toRightOf="@id/activity_collectable_image_game"
android:tint="@color/colorInactiveIcon"/>
<ImageView
android:id="@+id/activity_collectable_image_box"
android:layout_width="23dp"
android:layout_height="24dp"
android:layout_marginLeft="36dp"
android:layout_below="@id/activity_collectable_text_components_owned"
android:layout_toRightOf="@id/activity_collectable_image_manual"
android:tint="@color/colorInactiveIcon"/>
<View
android:id="@+id/activity_collectable_divider_2"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_below="@id/activity_collectable_image_game"
android:layout_marginTop="16dp"
android:layout_marginBottom="16dp"
android:layout_marginRight="24dp"
android:layout_marginLeft="24dp"
android:background="@color/colorDarkDividers"/>
<com.example.android.gamecollector.customviews.CustomTextView
android:id="@+id/activity_collectable_text_notes"
xmlns:roboto="http://schemas.android.com/apk/com.example.customviews.CustomTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/activity_collectable_divider_2"
android:layout_marginBottom="8dp"
android:layout_marginLeft="24dp"
android:text="@string/notes"
android:textSize="16sp"
android:textColor="@color/colorDarkPrimaryText"
roboto:typeface="roboto_bold.ttf" />
<!--Make sure hint and typed text have appropriate typeface, weight, size, and color-->
<com.example.android.gamecollector.customviews.CustomEditText
android:id="@+id/activity_collectable_customedittext_notes"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/activity_collectable_text_notes"
android:layout_marginRight="24dp"
android:layout_marginLeft="40dp"
android:hint="@string/notes_hint"/>
</RelativeLayout>
根据屏幕尺寸缩放可绘制对象并将它们放入 drawable-hdpi drawable-mdpi drawable-xhdpi 等文件夹中。你可以使用这个 source。检查 memmory allocation tracking 这些方法。 setImageResource 每张图片最多需要 0.5 MB 的内存。在默认 setImageResource.
ImageViews 添加 tints