我的程序在Android模拟器上立即崩溃,我在Eclipse控制台收到以下信息:
java.lang.NullPointerException
at com.android.ddmlib.Client.sendAndConsume(Client.java:572)
at com.android.ddmlib.HandleHello.sendHELO(HandleHello.java:142)
at com.android.ddmlib.HandleHello.sendHelloCommands(HandleHello.java:65)
at com.android.ddmlib.Client.getJdwpPacket(Client.java:671)
at com.android.ddmlib.MonitorThread.processClientActivity(MonitorThread.java:317)
at com.android.ddmlib.MonitorThread.run(MonitorThread.java:263)
我如何解决抛出此消息的问题?我是Eclipse和Android的新手。
当我试图启动一个带有按钮的对话框时,程序完全崩溃了,并引用到这里:
@Override
protected Dialog onCreateDialog(int id) {
Dialog dialog;
switch (id) {
case TIME_DIALOG_ID:
return new TimePickerDialog(this,
mTimeSetListener, mHour24, mMinute, false);
case POWER_OFF_OPTIONS:
AlertDialog.Builder builder;
AlertDialog alertDialog;
Context mContext = getApplicationContext();
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.options,
(ViewGroup)findViewById(R.id.relativeLayout1));
//Capture view elements
mChkAudio = (CheckBox) findViewById(R.id.chkAudio);
mChkBluetooth = (CheckBox) findViewById(R.id.chkBlueTooth);
mChkNetwork = (CheckBox) findViewById(R.id.chkNetwork);
mChkWifi = (CheckBox) findViewById(R.id.chkWifi);
mBtnOK = (Button) findViewById(R.id.btnOK);
mBtnOK.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
DismissPowerOptions();
}
});
builder = new AlertDialog.Builder(mContext);
builder.setView(layout);
alertDialog = builder.create();
//return alertDialog;
default:
dialog = null;
}
return dialog;
}
错误不是来自您的程序。这是一个关于Android的Eclipse插件的问题:"Dalvik Debug Monitor Server"。
http://developer.android.com/guide/developing/debugging/ddms.html有时这些东西只是进入一个坏的状态,需要重新启动。关闭模拟器并重新启动Eclipse。从AVD管理器窗口中使用标有"Start.."的按钮启动模拟器。在开始对话框中选择"擦除所有数据"按钮,以确保您得到一个干净的开始。
如果这不能解决这个问题,那么尝试在AVD管理器中删除你的模拟器并创建一个新的。
可能您没有正确配置AVD
我通过点击INVALIDATE CACHE AND RESTART解决了这个问题。
file -> Invalidate cache and restart -> Invalidate and restart