冲刺3

主体类实现 

package timeline.lizimumu.com.t.util;

import android.os.Environment;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import timeline.lizimumu.com.t.AppConst;

public class CrashHandler implements Thread.UncaughtExceptionHandler {

private static CrashHandler INSTANCE = new CrashHandler();
private Thread.UncaughtExceptionHandler mDefaultHandler;
private SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss", Locale.getDefault());

private CrashHandler() {
}

public static CrashHandler getInstance() {
return INSTANCE;
}

public void init() {
mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
Thread.setDefaultUncaughtExceptionHandler(this);
}

public void uncaughtException(Thread thread, Throwable ex) {
if (!handleException(ex) && mDefaultHandler != null) {
mDefaultHandler.uncaughtException(thread, ex);
} else {
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
android.os.Process.killProcess(android.os.Process.myPid());
System.exit(1);
}
}

private boolean handleException(Throwable ex) {
if (ex == null) return false;
saveCrashInfo2File(ex);
return true;
}

private void saveCrashInfo2File(Throwable ex) {
StringBuffer sb = new StringBuffer();
Writer writer = new StringWriter();
PrintWriter pw = new PrintWriter(writer);
ex.printStackTrace(pw);
Throwable cause = ex.getCause();
while (cause != null) {
cause.printStackTrace(pw);
cause = cause.getCause();
}
pw.close();
String result = writer.toString();
sb.append(result);
long timestamp = System.currentTimeMillis();
String time = format.format(new Date());
String fileName = "crash-" + time + "-" + timestamp + ".log";
if (Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED)) {
try {
File dir = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + AppConst.LOG_DIR);
boolean ok = true;
if (!dir.exists()) {
ok = dir.mkdirs();
}
if (ok) {
FileOutputStream fos = new FileOutputStream(new File(dir, fileName));
fos.write(sb.toString().getBytes());
fos.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}

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