Android studio 应用程序崩溃 webView
Android studio Aplication Crash webView
我正在编写一个应用程序。
我确实从 activity 1 到 2 和 1 到 3 和 1 到 4
但是我的应用程序崩溃了；(
有一个代码：
主要活动 1
package musial.pzstis.com.pzstiz;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button next = (Button) findViewById(R.id.synergia);
next.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, Main3Activity.class);
startActivity(intent);
}
});}
{
Button loadNewActivity = (Button) findViewById(R.id.dzwonki);
loadNewActivity.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, Main4Activity.class);
startActivity(intent);
}
});
}
}
Main3Activity
package musial.pzstis.com.pzstiz;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class Main3Activity extends AppCompatActivity {
private WebView myWebView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main3);
myWebView = (WebView)findViewById(R.id.webView2);
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
myWebView.loadUrl("https://synergia.librus.pl/loguj");
myWebView.setWebViewClient(new WebViewClient());
}
@Override
public void onBackPressed() {
if(myWebView.canGoBack()){
myWebView.goBack();
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Main4Activity
package musial.pzstis.com.pzstiz;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class Main4Activity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main4);
}
}
清单
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="musial.pzstis.com.pzstiz">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".Main2Activity">
<intent-filter>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity android:name=".Main4Activity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity android:name=".Main3Activity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
</application>
</manifest>
活动 1 XML
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="musial.pzstis.com.pzstiz.MainActivity">
<Button
android:text="E-DZIENNIK"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="29dp"
android:id="@+id/synergia"
android:layout_below="@+id/dzwonki"
android:layout_centerHorizontal="true" />
<Button
android:text="OGLOSZENIA"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/button3"
android:layout_marginTop="36dp"
android:layout_below="@+id/synergia"
android:layout_alignLeft="@+id/dzwonki"
android:layout_alignStart="@+id/dzwonki" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ZASTĘPSTWA"
android:id="@+id/Za"
android:layout_marginTop="21dp"
android:layout_below="@+id/Bt"
android:layout_alignLeft="@+id/synergia"
android:layout_alignStart="@+id/synergia" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="NEWSY"
android:id="@+id/Bt"
android:layout_marginTop="41dp"
android:layout_alignParentTop="true"
android:layout_alignRight="@+id/synergia"
android:layout_alignEnd="@+id/synergia" />
<TextClock
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/checkBox"
android:layout_toRightOf="@+id/button3"
android:layout_toEndOf="@+id/button3"
android:layout_marginLeft="20dp"
android:layout_marginStart="20dp"
android:id="@+id/textClock" />
<Button
android:text="DZWONKI"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/dzwonki"
android:layout_marginTop="29dp"
android:layout_below="@+id/Za"
android:layout_alignRight="@+id/synergia"
android:layout_alignEnd="@+id/synergia" />
<CheckBox
android:text="DEBUG"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/checkBox"
android:layout_alignBottom="@+id/synergia"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
我需要帮助，因为我正在编写一个基于许多 webview 网站的应用程序
LOG FROM CONSOLE
12-12 20:49:14.642 1761-4023/system_process I/ActivityManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=musial.pzstis.com.pzstiz/.MainActivity (has extras)} from uid 10024 on display 0
12-12 20:49:14.688 1761-1775/system_process W/BroadcastQueue: Permission Denial: receiving Intent { act=com.android.launcher3.action.LAUNCH flg=0x10 (has extras) } to com.google.android.gms/.chimera.GmsIntentOperationService$GmsExternalReceiver requires com.android.launcher3.permission.RECEIVE_LAUNCH_BROADCASTS due to sender com.cyanogenmod.trebuchet (uid 10024)
12-12 20:49:14.688 1761-1775/system_process W/BroadcastQueue: Permission Denial: broadcasting Intent { act=com.android.launcher3.action.LAUNCH flg=0x10 (has extras) } from com.cyanogenmod.trebuchet (pid=4804, uid=10024) requires com.google.android.launcher.permission.RECEIVE_LAUNCH_BROADCASTS due to receiver com.google.android.gms/.icing.proxy.ApplicationLauncherReceiver
12-12 20:49:14.715 1761-4094/system_process I/ActivityManager: Start proc 761:musial.pzstis.com.pzstiz/u0a152 for activity musial.pzstis.com.pzstiz/.MainActivity
12-12 20:49:14.990 1761-1772/system_process W/ActivityManager: Force finishing activity musial.pzstis.com.pzstiz/.MainActivity
12-12 20:49:15.124 1761-3887/system_process I/OpenGLRenderer: Initialized EGL, version 1.4
12-12 20:49:15.535 1761-1775/system_process W/ActivityManager: Activity pause timeout for ActivityRecord{5a2804a u0 musial.pzstis.com.pzstiz/.MainActivity t405 f}
12-12 20:49:16.552 1761-5430/system_process I/ActivityManager: Killing 31895:in.celest.xash3d.hl/u0a113 (adj 15): empty #17
12-12 20:49:16.694 1761-1774/system_process W/art: Long monitor contention event with owner method=void com.android.server.am.ActivityManagerService.serviceDoneExecuting(android.os.IBinder, int, int, int) from ActivityManagerService.java:16425 waiters=2 for 129ms
12-12 20:49:16.695 1761-5450/system_process W/art: Long monitor contention event with owner method=void com.android.server.am.ActivityManagerService.serviceDoneExecuting(android.os.IBinder, int, int, int) from ActivityManagerService.java:16425 waiters=3 for 134ms
12-12 20:49:25.618 1761-1775/system_process W/ActivityManager: Activity destroy timeout for ActivityRecord{5a2804a u0 musial.pzstis.com.pzstiz/.MainActivity t405 f}
我通常使用 error-error 而不是日志。我认为这是堆栈跟踪。我 运行 你有什么代码，它一直崩溃，我在第一个 activity 上修复了你的缩进，它可以工作。下面是一个固定的缩进。记得留意你的括号 '}' 和 '{'
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button next = (Button) findViewById(R.id.synergia);
next.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, Main3Activity.class);
startActivity(intent);
}
});
Button loadNewActivity = (Button) findViewById(R.id.dzwonki);
loadNewActivity.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, Main4Activity.class);
startActivity(intent);
}
});
}
我正在编写一个应用程序。 我确实从 activity 1 到 2 和 1 到 3 和 1 到 4 但是我的应用程序崩溃了；(
有一个代码： 主要活动 1
package musial.pzstis.com.pzstiz;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button next = (Button) findViewById(R.id.synergia);
next.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, Main3Activity.class);
startActivity(intent);
}
});}
{
Button loadNewActivity = (Button) findViewById(R.id.dzwonki);
loadNewActivity.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, Main4Activity.class);
startActivity(intent);
}
});
}
}
Main3Activity
package musial.pzstis.com.pzstiz;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class Main3Activity extends AppCompatActivity {
private WebView myWebView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main3);
myWebView = (WebView)findViewById(R.id.webView2);
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
myWebView.loadUrl("https://synergia.librus.pl/loguj");
myWebView.setWebViewClient(new WebViewClient());
}
@Override
public void onBackPressed() {
if(myWebView.canGoBack()){
myWebView.goBack();
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Main4Activity
package musial.pzstis.com.pzstiz;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class Main4Activity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main4);
}
}
清单
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="musial.pzstis.com.pzstiz">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".Main2Activity">
<intent-filter>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity android:name=".Main4Activity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity android:name=".Main3Activity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
</application>
</manifest>
活动 1 XML
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="musial.pzstis.com.pzstiz.MainActivity">
<Button
android:text="E-DZIENNIK"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="29dp"
android:id="@+id/synergia"
android:layout_below="@+id/dzwonki"
android:layout_centerHorizontal="true" />
<Button
android:text="OGLOSZENIA"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/button3"
android:layout_marginTop="36dp"
android:layout_below="@+id/synergia"
android:layout_alignLeft="@+id/dzwonki"
android:layout_alignStart="@+id/dzwonki" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ZASTĘPSTWA"
android:id="@+id/Za"
android:layout_marginTop="21dp"
android:layout_below="@+id/Bt"
android:layout_alignLeft="@+id/synergia"
android:layout_alignStart="@+id/synergia" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="NEWSY"
android:id="@+id/Bt"
android:layout_marginTop="41dp"
android:layout_alignParentTop="true"
android:layout_alignRight="@+id/synergia"
android:layout_alignEnd="@+id/synergia" />
<TextClock
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/checkBox"
android:layout_toRightOf="@+id/button3"
android:layout_toEndOf="@+id/button3"
android:layout_marginLeft="20dp"
android:layout_marginStart="20dp"
android:id="@+id/textClock" />
<Button
android:text="DZWONKI"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/dzwonki"
android:layout_marginTop="29dp"
android:layout_below="@+id/Za"
android:layout_alignRight="@+id/synergia"
android:layout_alignEnd="@+id/synergia" />
<CheckBox
android:text="DEBUG"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/checkBox"
android:layout_alignBottom="@+id/synergia"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
我需要帮助，因为我正在编写一个基于许多 webview 网站的应用程序
LOG FROM CONSOLE
12-12 20:49:14.642 1761-4023/system_process I/ActivityManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=musial.pzstis.com.pzstiz/.MainActivity (has extras)} from uid 10024 on display 0
12-12 20:49:14.688 1761-1775/system_process W/BroadcastQueue: Permission Denial: receiving Intent { act=com.android.launcher3.action.LAUNCH flg=0x10 (has extras) } to com.google.android.gms/.chimera.GmsIntentOperationService$GmsExternalReceiver requires com.android.launcher3.permission.RECEIVE_LAUNCH_BROADCASTS due to sender com.cyanogenmod.trebuchet (uid 10024)
12-12 20:49:14.688 1761-1775/system_process W/BroadcastQueue: Permission Denial: broadcasting Intent { act=com.android.launcher3.action.LAUNCH flg=0x10 (has extras) } from com.cyanogenmod.trebuchet (pid=4804, uid=10024) requires com.google.android.launcher.permission.RECEIVE_LAUNCH_BROADCASTS due to receiver com.google.android.gms/.icing.proxy.ApplicationLauncherReceiver
12-12 20:49:14.715 1761-4094/system_process I/ActivityManager: Start proc 761:musial.pzstis.com.pzstiz/u0a152 for activity musial.pzstis.com.pzstiz/.MainActivity
12-12 20:49:14.990 1761-1772/system_process W/ActivityManager: Force finishing activity musial.pzstis.com.pzstiz/.MainActivity
12-12 20:49:15.124 1761-3887/system_process I/OpenGLRenderer: Initialized EGL, version 1.4
12-12 20:49:15.535 1761-1775/system_process W/ActivityManager: Activity pause timeout for ActivityRecord{5a2804a u0 musial.pzstis.com.pzstiz/.MainActivity t405 f}
12-12 20:49:16.552 1761-5430/system_process I/ActivityManager: Killing 31895:in.celest.xash3d.hl/u0a113 (adj 15): empty #17
12-12 20:49:16.694 1761-1774/system_process W/art: Long monitor contention event with owner method=void com.android.server.am.ActivityManagerService.serviceDoneExecuting(android.os.IBinder, int, int, int) from ActivityManagerService.java:16425 waiters=2 for 129ms
12-12 20:49:16.695 1761-5450/system_process W/art: Long monitor contention event with owner method=void com.android.server.am.ActivityManagerService.serviceDoneExecuting(android.os.IBinder, int, int, int) from ActivityManagerService.java:16425 waiters=3 for 134ms
12-12 20:49:25.618 1761-1775/system_process W/ActivityManager: Activity destroy timeout for ActivityRecord{5a2804a u0 musial.pzstis.com.pzstiz/.MainActivity t405 f}
我通常使用 error-error 而不是日志。我认为这是堆栈跟踪。我 运行 你有什么代码，它一直崩溃，我在第一个 activity 上修复了你的缩进，它可以工作。下面是一个固定的缩进。记得留意你的括号 '}' 和 '{'
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button next = (Button) findViewById(R.id.synergia);
next.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, Main3Activity.class);
startActivity(intent);
}
});
Button loadNewActivity = (Button) findViewById(R.id.dzwonki);
loadNewActivity.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, Main4Activity.class);
startActivity(intent);
}
});
}