最近新產(chǎn)品測(cè)試，頻頻出現(xiàn)異常。所以需要對(duì)異常進(jìn)行全局捕捉。
翻閱大量帖子、源碼終于找到了UncaughtExceptionHandler接口。廢話不多說還是直接上源碼吧。
首先實(shí)現(xiàn)UncaughtExceptionHandler
public class CatchHandler implements UncaughtExceptionHandler{
private CatchHandler() {
}
public static CatchHandler getInstance() {
return mCatchHandler;
}
private static CatchHandler mCatchHandler = new CatchHandler();
private Context mContext;
private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
@Override
public void uncaughtException(Thread thread, Throwable ex) {
if (thread.getName().equals("main")) {
ToastException(thread, ex);
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
}
android.os.Process.killProcess(android.os.Process.myPid());
System.exit(1);
} else {
handleException(thread, ex);
}
}
public void init(Context context) {
mContext = context;
Thread.setDefaultUncaughtExceptionHandler(this);
}
private void ToastException(final Thread thread, final Throwable ex) {
new Thread() {
@Override
public void run() {
Looper.prepare();
StringBuilder builder = new StringBuilder();
builder.append("At thread: ").append(thread.getName())
.append("\n");
builder.append("Exception is :\n").append(ex.getMessage());
Toast.makeText(mContext, builder.toString(), Toast.LENGTH_LONG)
.show();
Looper.loop();
}
}.start();
}
private void handleException(final Thread thread, final Throwable ex) {
Intent intent =new Intent("per.xch.test2_35.main");
<font color="#00ed00">intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);</font>
mContext.startActivity(intent);
}
}
然后在項(xiàng)目中引用
public class CatchApplication extends Application {
@Override
public void onCreate() {
super.onCreate();
CatchHandler.getInstance().init(getApplicationContext());
}
}
注意
<application
<font color="#00ed00">android:name=".CatchApplication"</font>最后測(cè)試下
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new Thread(new Runnable() {
@Override
public void run() {
throw new NullPointerException("please catch me! sub thread");
}
}).start();
throw new NullPointerException("please catch me! sub thread");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
之所以在主線程和其他線程采用不同處理方式因?yàn)橹骶�程崩潰很大程度上就沒的救了。
還有要注意的是intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
原因很簡(jiǎn)單，源碼寫的很明白
ContextImpl.java
@Override
public void startActivity(Intent intent) {
if ((intent.getFlags()&Intent.FLAG_ACTIVITY_NEW_TASK) == 0) {
throw new AndroidRuntimeException(
"Calling startActivity() from outside of an Activity "
+ " context requires the FLAG_ACTIVITY_NEW_TASK flag."
+ " Is this really what you want?");
}
mMainThread.getInstrumentation().execStartActivity(
getOuterContext(), mMainThread.getApplicationThread(), null,
(Activity)null, intent, -1);
}
至于怎么把a(bǔ)ctivity怎么變成dialog我就不廢話嘍，吼，閃人。
喜歡 
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囧
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