Android捕获全局异常
16lz
2021-01-23
Android捕获全局异常
程序避免不了出现bug，导致程序崩溃，为了尽量不影响用户体验，可以全局捕获异常
效果图
- 异常捕获处理前
- 异常捕获处理后（将程序重新启动）
捕获异常的工具类
package com.example.kongqw.exceptiondemo;import android.content.Context;import android.support.v7.internal.app.ToolbarActionBar;import android.util.Log;import android.widget.Toast;/** * Created by kongqw on 2015/11/3. */public class KqwException implements Thread.UncaughtExceptionHandler { private static KqwException myCrashHandler; private Context mContext; private KqwException(Context context) { mContext = context; } public static synchronized KqwException getInstance(Context context) { if (null == myCrashHandler) { myCrashHandler = new KqwException(context); } return myCrashHandler; } public void uncaughtException(Thread thread, Throwable throwable) { long threadId = thread.getId(); String message = throwable.getMessage(); String localizedMessage = throwable.getLocalizedMessage(); Log.i("KqwException", "------------------------------------------------------"); Log.i("KqwException", "threadId = " + threadId); Log.i("KqwException", "message = " + message); Log.i("KqwException", "localizedMessage = " + localizedMessage); Log.i("KqwException", "------------------------------------------------------"); throwable.printStackTrace(); Log.i("KqwException", "------------------------------------------------------"); // TODO 下面捕获到异常以后要做的事情，可以重启应用，获取手机信息上传到服务器等 Log.i("KqwException", "------------------应用被重启----------------"); // 重启应用 mContext.startActivity(mContext.getPackageManager().getLaunchIntentForPackage(mContext.getPackageName())); //干掉当前的程序 android.os.Process.killProcess(android.os.Process.myPid()); }}使用
在Application下添加Handler
注册Application
在清单文件下添加name属性
<application …… android:name=".InitApplication" …… > <activity …… > <intent-filter> …… </intent-filter> </activity></application>Application
package com.example.kongqw.exceptiondemo;import android.app.Application;/** * Created by kongqw on 2015/11/3. */public class InitApplication extends Application { @Override public void onCreate() { super.onCreate(); KqwException handler = KqwException.getInstance(this); Thread.setDefaultUncaughtExceptionHandler(handler); }}测试类
package com.example.kongqw.exceptiondemo;import android.app.Activity;import android.os.Bundle;import android.support.design.widget.FloatingActionButton;import android.support.design.widget.Snackbar;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.Toolbar;import android.view.View;import android.view.Menu;import android.view.MenuItem;import android.widget.Toast;public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } public void bug(View view) { Toast.makeText(this, "程序崩溃", Toast.LENGTH_SHORT).show(); // 除数为0 导致程序崩溃 int a = 1 / 0; }}XML布局
<?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: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" app:layout_behavior="@string/appbar_scrolling_view_behavior" tools:context=".MainActivity" tools:showIn="@layout/activity_main"> <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="bug" android:text="点击程序崩溃" /></RelativeLayout>更多相关文章
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