Android 应用程序停止
Android application stops
当应用程序加载此 activity 时它停止 working.Below 是我的主要 activity、logcat 和所需数组的代码。请帮我解决这个问题。在此,当用户从微调器中选择任何项目时,然后根据所选项目另一个列表项加载结果。
主要活动:
Button cropPrice;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnButton();
}
public void addListenerOnButton(){
final Context context = this;
cropPrice = (Button)findViewById(R.id.button1);
cropPrice.setOnClickListener(new OnClickListener(){
public void onClick(View arg0){
Intent intent = new Intent(context, CropPrice.class);
startActivity(intent);
}
});
}
CropPrice.java
public static String itemsa = "guj";
// List view
private ListView lv;
// Listview Adapter
ArrayAdapter<String> adapter;
// Search EditText
EditText inputSearch;
// ArrayList for Listview
ArrayList<HashMap<String, String>> productList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.crop_price);
Spinner state = (Spinner) findViewById(R.id.spinner1);
String[] courses={"guj","con","raj"};
ArrayAdapter<String> adapter1=new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line,courses);
state.setAdapter(adapter1);
state.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> av, View v,
int position, long itemId) {
// TODO Auto-generated method stub
itemsa = av.getItemAtPosition(position).toString();
int getRes2 = getResources().getIdentifier(itemsa, "array", getPackageName());
final String products[] = getResources().getStringArray(getRes2);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}});
// Listview Data
// Intent intent = new Intent();
// ((EditText)(findViewById(R.id.inputSearch))).setText(intent.getStringExtra("selected"));
//int id = Context.getResources().getIdentifier(itemsa, "array",
// context.getPackageName());
//String products[] = context.getResources().getStringArray(id);
//final String products[] = getResources().getStringArray(R.array.guj);
//int resourceId = R.array.class.getField(Integer.parseInt(itemsa));
//final String products[] = getResources().getStringArray(resourceId);
//int holderint = getResources().getIdentifier(itemsa, "Array",
// this.getPackageName());
// String[] products = getResources().getStringArray(holderint);
//String itemName = itemsa;
//String getRes = "R.array."+ itemName;
//final String products[] = getResources().getStringArray("getRes");
lv = (ListView) findViewById(R.id.listView1);
// Adding items to listview
adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
lv.setAdapter(adapter);
lv.setVisibility(View.GONE);
inputSearch = (EditText) findViewById(R.id.inputSearch);
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
if(count == 0)
{
tl.setVisibility(View.GONE);
}
submitButton.setVisibility(View.GONE);
CropPrice.this.adapter.getFilter().filter(cs);
if(cs.length()== 0){
lv.setVisibility(View.GONE);
}else{
lv.setVisibility(View.VISIBLE);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
inputSearch.setText((String) lv.getAdapter().getItem(position));
cont = inputSearch.getText().toString();
lv.setVisibility(View.GONE);
submitButton.setVisibility(View.VISIBLE);
tl.setVisibility(View.VISIBLE);
} });
}
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
}
Strings.xml
<string-array name="raj">
<item >raja</item>
<item >rajb</item>
</string-array>
<string-array name="Countreis">
<item >manish</item>
<item >India</item>
</string-array>
<string-array name="guj">
<item >guja</item>
<item >gujb</item>
</string-array>
日志猫:
01-03 06:11:20.013: E/AndroidRuntime(2883): FATAL EXCEPTION: main
01-03 06:11:20.013: E/AndroidRuntime(2883): Process: com.finaldbparse.finaldbparse, PID: 2883
01-03 06:11:20.013: E/AndroidRuntime(2883): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.finaldbparse.finaldbparse/com.finaldbparse.finaldbparse.CropPrice}: java.lang.NullPointerException: storage == null
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.ActivityThread.access0(ActivityThread.java:144)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.os.Handler.dispatchMessage(Handler.java:102)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.os.Looper.loop(Looper.java:135)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.ActivityThread.main(ActivityThread.java:5221)
01-03 06:11:20.013: E/AndroidRuntime(2883): at java.lang.reflect.Method.invoke(Native Method)
01-03 06:11:20.013: E/AndroidRuntime(2883): at java.lang.reflect.Method.invoke(Method.java:372)
01-03 06:11:20.013: E/AndroidRuntime(2883): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
01-03 06:11:20.013: E/AndroidRuntime(2883): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
01-03 06:11:20.013: E/AndroidRuntime(2883): Caused by: java.lang.NullPointerException: storage == null
01-03 06:11:20.013: E/AndroidRuntime(2883): at java.util.Arrays$ArrayList.<init>(Arrays.java:38)
01-03 06:11:20.013: E/AndroidRuntime(2883): at java.util.Arrays.asList(Arrays.java:155)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.widget.ArrayAdapter.<init>(ArrayAdapter.java:141)
01-03 06:11:20.013: E/AndroidRuntime(2883): at com.finaldbparse.finaldbparse.CropPrice.onCreate(CropPrice.java:128)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.Activity.performCreate(Activity.java:5933)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
01-03 06:11:20.013: E/AndroidRuntime(2883): ... 10 more
java.lang.NullPointerException: name is null
因为 getResources().getIdentifier
在调用 onCreate
方法时执行,但您在 Spinner 的 onItemSelected
上的 itemsa
中设置值。
因此您需要在调用 getResources().getIdentifier
或使用一些默认值初始化 itemsa
之前进行空检查:
您最初没有初始化 itemsa
变量。
像这样更改行:
默认初始化一些值。
public static String itemsa="guj";
也更改这些行:
String[] courses={"guj","con","raj"};
到
String[] courses={"raj","Countreis","guj"};
编辑:
public static String itemsa = "guj";
// List view
private ListView lv;
// Listview Adapter
ArrayAdapter<String> adapter;
// Search EditText
EditText inputSearch;
// ArrayList for Listview
ArrayList<HashMap<String, String>> productList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.crop_price);
Spinner state = (Spinner) findViewById(R.id.spinner1);
String[] courses={"guj","Countreis","raj"};
ArrayAdapter<String> adapter1=new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line,courses);
state.setAdapter(adapter1);
state.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> av, View v,
int position, long itemId) {
// TODO Auto-generated method stub
itemsa = av.getItemAtPosition(position).toString();
int getRes2 = getResources().getIdentifier(itemsa, "array", getPackageName());
final String products[] = getResources().getStringArray(getRes2);
updateList(products);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}});
int getRes2 = getResources().getIdentifier(itemsa, "array", getPackageName());
final String products[] = getResources().getStringArray(getRes2);
updateList(products);
}
private void updateList(String[] products) {
lv = (ListView) findViewById(R.id.listView1);
// Adding items to listview
adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
lv.setAdapter(adapter);
lv.setVisibility(View.GONE);
inputSearch = (EditText) findViewById(R.id.inputSearch);
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
if(count == 0)
{
tl.setVisibility(View.GONE);
}
submitButton.setVisibility(View.GONE);
CropPrice.this.adapter.getFilter().filter(cs);
if(cs.length()== 0){
lv.setVisibility(View.GONE);
}else{
lv.setVisibility(View.VISIBLE);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
inputSearch.setText((String) lv.getAdapter().getItem(position));
cont = inputSearch.getText().toString();
lv.setVisibility(View.GONE);
submitButton.setVisibility(View.VISIBLE);
tl.setVisibility(View.VISIBLE);
} });
}
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
}
使用 try-catch
块来监视这样的错误,
try{
Spinner state = (Spinner) findViewById(R.id.spinner1);
String[] courses={"guj","con","raj"};
ArrayAdapter<String> adapter1=new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line,courses);
state.setAdapter(adapter1);
state.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> av, View v,
int position, long itemId) {
// TODO Auto-generated method stub
itemsa = av.getItemAtPosition(position).toString();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}});
// Listview Data
// Intent intent = new Intent();
// ((EditText)(findViewById(R.id.inputSearch))).setText(intent.getStringExtra("selected"));
//int id = Context.getResources().getIdentifier(itemsa, "array",
// context.getPackageName());
//String products[] = context.getResources().getStringArray(id);
//final String products[] = getResources().getStringArray(R.array.guj);
int getRes2 = getResources().getIdentifier(itemsa, "array", getPackageName());
final String products[] = getResources().getStringArray(getRes2);
//int resourceId = R.array.class.getField(Integer.parseInt(itemsa));
//final String products[] = getResources().getStringArray(resourceId);
//int holderint = getResources().getIdentifier(itemsa, "Array",
// this.getPackageName());
// String[] products = getResources().getStringArray(holderint);
//String itemName = itemsa;
//String getRes = "R.array."+ itemName;
//final String products[] = getResources().getStringArray("getRes");
lv = (ListView) findViewById(R.id.listView1);
// Adding items to listview
adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
lv.setAdapter(adapter);
lv.setVisibility(View.GONE);
inputSearch = (EditText) findViewById(R.id.inputSearch);
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
if(count == 0)
{
tl.setVisibility(View.GONE);
}
submitButton.setVisibility(View.GONE);
CropPrice.this.adapter.getFilter().filter(cs);
if(cs.length()== 0){
lv.setVisibility(View.GONE);
}else{
lv.setVisibility(View.VISIBLE);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
inputSearch.setText((String) lv.getAdapter().getItem(position));
cont = inputSearch.getText().toString();
lv.setVisibility(View.GONE);
submitButton.setVisibility(View.VISIBLE);
tl.setVisibility(View.VISIBLE);
} });
}
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
}catch(Exception e){
//display e in toast
Toast.makeText(context, ""+e, duration).show();
}
当应用程序加载此 activity 时它停止 working.Below 是我的主要 activity、logcat 和所需数组的代码。请帮我解决这个问题。在此,当用户从微调器中选择任何项目时,然后根据所选项目另一个列表项加载结果。
主要活动:
Button cropPrice;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnButton();
}
public void addListenerOnButton(){
final Context context = this;
cropPrice = (Button)findViewById(R.id.button1);
cropPrice.setOnClickListener(new OnClickListener(){
public void onClick(View arg0){
Intent intent = new Intent(context, CropPrice.class);
startActivity(intent);
}
});
}
CropPrice.java
public static String itemsa = "guj";
// List view
private ListView lv;
// Listview Adapter
ArrayAdapter<String> adapter;
// Search EditText
EditText inputSearch;
// ArrayList for Listview
ArrayList<HashMap<String, String>> productList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.crop_price);
Spinner state = (Spinner) findViewById(R.id.spinner1);
String[] courses={"guj","con","raj"};
ArrayAdapter<String> adapter1=new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line,courses);
state.setAdapter(adapter1);
state.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> av, View v,
int position, long itemId) {
// TODO Auto-generated method stub
itemsa = av.getItemAtPosition(position).toString();
int getRes2 = getResources().getIdentifier(itemsa, "array", getPackageName());
final String products[] = getResources().getStringArray(getRes2);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}});
// Listview Data
// Intent intent = new Intent();
// ((EditText)(findViewById(R.id.inputSearch))).setText(intent.getStringExtra("selected"));
//int id = Context.getResources().getIdentifier(itemsa, "array",
// context.getPackageName());
//String products[] = context.getResources().getStringArray(id);
//final String products[] = getResources().getStringArray(R.array.guj);
//int resourceId = R.array.class.getField(Integer.parseInt(itemsa));
//final String products[] = getResources().getStringArray(resourceId);
//int holderint = getResources().getIdentifier(itemsa, "Array",
// this.getPackageName());
// String[] products = getResources().getStringArray(holderint);
//String itemName = itemsa;
//String getRes = "R.array."+ itemName;
//final String products[] = getResources().getStringArray("getRes");
lv = (ListView) findViewById(R.id.listView1);
// Adding items to listview
adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
lv.setAdapter(adapter);
lv.setVisibility(View.GONE);
inputSearch = (EditText) findViewById(R.id.inputSearch);
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
if(count == 0)
{
tl.setVisibility(View.GONE);
}
submitButton.setVisibility(View.GONE);
CropPrice.this.adapter.getFilter().filter(cs);
if(cs.length()== 0){
lv.setVisibility(View.GONE);
}else{
lv.setVisibility(View.VISIBLE);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
inputSearch.setText((String) lv.getAdapter().getItem(position));
cont = inputSearch.getText().toString();
lv.setVisibility(View.GONE);
submitButton.setVisibility(View.VISIBLE);
tl.setVisibility(View.VISIBLE);
} });
}
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
}
Strings.xml
<string-array name="raj">
<item >raja</item>
<item >rajb</item>
</string-array>
<string-array name="Countreis">
<item >manish</item>
<item >India</item>
</string-array>
<string-array name="guj">
<item >guja</item>
<item >gujb</item>
</string-array>
日志猫:
01-03 06:11:20.013: E/AndroidRuntime(2883): FATAL EXCEPTION: main
01-03 06:11:20.013: E/AndroidRuntime(2883): Process: com.finaldbparse.finaldbparse, PID: 2883
01-03 06:11:20.013: E/AndroidRuntime(2883): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.finaldbparse.finaldbparse/com.finaldbparse.finaldbparse.CropPrice}: java.lang.NullPointerException: storage == null
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.ActivityThread.access0(ActivityThread.java:144)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.os.Handler.dispatchMessage(Handler.java:102)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.os.Looper.loop(Looper.java:135)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.ActivityThread.main(ActivityThread.java:5221)
01-03 06:11:20.013: E/AndroidRuntime(2883): at java.lang.reflect.Method.invoke(Native Method)
01-03 06:11:20.013: E/AndroidRuntime(2883): at java.lang.reflect.Method.invoke(Method.java:372)
01-03 06:11:20.013: E/AndroidRuntime(2883): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
01-03 06:11:20.013: E/AndroidRuntime(2883): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
01-03 06:11:20.013: E/AndroidRuntime(2883): Caused by: java.lang.NullPointerException: storage == null
01-03 06:11:20.013: E/AndroidRuntime(2883): at java.util.Arrays$ArrayList.<init>(Arrays.java:38)
01-03 06:11:20.013: E/AndroidRuntime(2883): at java.util.Arrays.asList(Arrays.java:155)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.widget.ArrayAdapter.<init>(ArrayAdapter.java:141)
01-03 06:11:20.013: E/AndroidRuntime(2883): at com.finaldbparse.finaldbparse.CropPrice.onCreate(CropPrice.java:128)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.Activity.performCreate(Activity.java:5933)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
01-03 06:11:20.013: E/AndroidRuntime(2883): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
01-03 06:11:20.013: E/AndroidRuntime(2883): ... 10 more
java.lang.NullPointerException: name is null
因为 getResources().getIdentifier
在调用 onCreate
方法时执行,但您在 Spinner 的 onItemSelected
上的 itemsa
中设置值。
因此您需要在调用 getResources().getIdentifier
或使用一些默认值初始化 itemsa
之前进行空检查:
您最初没有初始化 itemsa
变量。
像这样更改行:
默认初始化一些值。
public static String itemsa="guj";
也更改这些行:
String[] courses={"guj","con","raj"};
到
String[] courses={"raj","Countreis","guj"};
编辑:
public static String itemsa = "guj";
// List view
private ListView lv;
// Listview Adapter
ArrayAdapter<String> adapter;
// Search EditText
EditText inputSearch;
// ArrayList for Listview
ArrayList<HashMap<String, String>> productList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.crop_price);
Spinner state = (Spinner) findViewById(R.id.spinner1);
String[] courses={"guj","Countreis","raj"};
ArrayAdapter<String> adapter1=new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line,courses);
state.setAdapter(adapter1);
state.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> av, View v,
int position, long itemId) {
// TODO Auto-generated method stub
itemsa = av.getItemAtPosition(position).toString();
int getRes2 = getResources().getIdentifier(itemsa, "array", getPackageName());
final String products[] = getResources().getStringArray(getRes2);
updateList(products);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}});
int getRes2 = getResources().getIdentifier(itemsa, "array", getPackageName());
final String products[] = getResources().getStringArray(getRes2);
updateList(products);
}
private void updateList(String[] products) {
lv = (ListView) findViewById(R.id.listView1);
// Adding items to listview
adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
lv.setAdapter(adapter);
lv.setVisibility(View.GONE);
inputSearch = (EditText) findViewById(R.id.inputSearch);
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
if(count == 0)
{
tl.setVisibility(View.GONE);
}
submitButton.setVisibility(View.GONE);
CropPrice.this.adapter.getFilter().filter(cs);
if(cs.length()== 0){
lv.setVisibility(View.GONE);
}else{
lv.setVisibility(View.VISIBLE);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
inputSearch.setText((String) lv.getAdapter().getItem(position));
cont = inputSearch.getText().toString();
lv.setVisibility(View.GONE);
submitButton.setVisibility(View.VISIBLE);
tl.setVisibility(View.VISIBLE);
} });
}
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
}
使用 try-catch
块来监视这样的错误,
try{
Spinner state = (Spinner) findViewById(R.id.spinner1);
String[] courses={"guj","con","raj"};
ArrayAdapter<String> adapter1=new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line,courses);
state.setAdapter(adapter1);
state.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> av, View v,
int position, long itemId) {
// TODO Auto-generated method stub
itemsa = av.getItemAtPosition(position).toString();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}});
// Listview Data
// Intent intent = new Intent();
// ((EditText)(findViewById(R.id.inputSearch))).setText(intent.getStringExtra("selected"));
//int id = Context.getResources().getIdentifier(itemsa, "array",
// context.getPackageName());
//String products[] = context.getResources().getStringArray(id);
//final String products[] = getResources().getStringArray(R.array.guj);
int getRes2 = getResources().getIdentifier(itemsa, "array", getPackageName());
final String products[] = getResources().getStringArray(getRes2);
//int resourceId = R.array.class.getField(Integer.parseInt(itemsa));
//final String products[] = getResources().getStringArray(resourceId);
//int holderint = getResources().getIdentifier(itemsa, "Array",
// this.getPackageName());
// String[] products = getResources().getStringArray(holderint);
//String itemName = itemsa;
//String getRes = "R.array."+ itemName;
//final String products[] = getResources().getStringArray("getRes");
lv = (ListView) findViewById(R.id.listView1);
// Adding items to listview
adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
lv.setAdapter(adapter);
lv.setVisibility(View.GONE);
inputSearch = (EditText) findViewById(R.id.inputSearch);
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
if(count == 0)
{
tl.setVisibility(View.GONE);
}
submitButton.setVisibility(View.GONE);
CropPrice.this.adapter.getFilter().filter(cs);
if(cs.length()== 0){
lv.setVisibility(View.GONE);
}else{
lv.setVisibility(View.VISIBLE);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
inputSearch.setText((String) lv.getAdapter().getItem(position));
cont = inputSearch.getText().toString();
lv.setVisibility(View.GONE);
submitButton.setVisibility(View.VISIBLE);
tl.setVisibility(View.VISIBLE);
} });
}
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
}catch(Exception e){
//display e in toast
Toast.makeText(context, ""+e, duration).show();
}