如何在Android4.0.4锁屏界面的电话图标右上角显示未接电话个数？
目前，未接电话个数也要获取到。存在的问题就是如何在电话图标右上角显示未接电话个数？
电话图标是控件MultiWaveView上的图标，该类是系统已经定义好的。我想通过直接集成View来自定义自己的View，然后在OnDraw函数通过Canvas和paint，指定坐标来画。但始终是没有显示出来。自定义view的OnDraw函数也有跑到。请指教要实现这效果，该怎样是画未接个数呢？效果图：
我是在自定义的handler中调用构造函数。每10s就会handler处理。
private final Handler mUpdateMissCallNum = new Handler() {
@Override
public void handleMessage(Message msg) {
Log.i(TAG, "mUpdateMissCallNum");
switch (msg.what) {
case UPDATESTART:
Log.i(TAG, "UPDATESTART");
sNewMissedCallCount = getMissedCallCount(mContext);
if (sNewMissedCallCount != sTempMissedCallCount)
{
Log.i(TAG, "sNewMissedCallCount != sTempMissedCallCount");
new Thread(new Runnable()
{
public void run()
{
Log.i(TAG, "sNewMissedCallCount is:"+sNewMissedCallCount);
Log.i(TAG, "sTempMissedCallCount is:"+sTempMissedCallCount);
sTempMissedCallCount = sNewMissedCallCount;
mMissedCallView=new MissedCallView(mContext,sTempMissedCallCount);
Log.i(TAG, "sTempMissedCallCount is:"+sTempMissedCallCount);
}
}
).start();
}
break;
default:
break;
}
}
}
mMissedCallView=new MissedCallView(mContext,sTempMissedCallCount);这就是我调用自定义view的地方。通过直接用坐标和canvas，paint画，不要再在xml文件里去写吧。
锁屏用到的xml文件：Keyguardscreentabunlock.xml (framework\base\core\res\res\layout)该文件中用系统自定义的波纹锁屏
<com.android.internal.widget.multiwaveview.MultiWaveView android:id="@+id/unlockwidget" android:orientation="horizontal" android:layoutwidth="matchparent" android:layoutheight="matchparent" android:layout_alignParentBottom="true" android:targetDrawables="@array/lockscreen_targets_with_camera" android:targetDescriptions="@array/lockscreen_target_descriptions_with_camera" android:directionDescriptions="@array/lockscreen_direction_descriptions" android:handleDrawable="@drawable/ic_lockscreen_handle" android:waveDrawable="@drawable/ic_lockscreen_outerring" android:outerRadius="@dimen/multiwaveview_target_placement_radius" android:snapMargin="@dimen/multiwaveview_snap_margin" android:hitRadius="@dimen/multiwaveview_hit_radius" android:rightChevronDrawable="@drawable/ic_lockscreen_chevron_right" android:horizontalOffset="0dip" android:verticalOffset="60dip" android:feedbackCount="3" android:vibrationDuration="20" />
效果图：
我们只是把相机改成了拨号，就是在这拨号图标上打算画上未接电话数。请指教，谢谢！
这个类存放位置：framework\base\core\java\com\android\internal\widget\multiwaveview\MissedCallView.java
public class MissedCallView extends View {
private static final String TAG = "MissedCallViews";
public static final int UPDATESTART = 10;
private static final int DELAYTIME = 10000;
private int sTempMissedCallCount=-1;
Context mContext;
Canvas mCanvas;
public MissedCallView(Context context)
{
super(context);
Log.i(TAG, "MissedCallView1");
mCanvas=new Canvas();
}
public MissedCallView(Context context, AttributeSet attrs)
{
super(context, attrs);
Log.i(TAG, "MissedCallView2");
mCanvas=new Canvas();
}
public MissedCallView(Context context,int missedCallNum) {
super(context);
sTempMissedCallCount=missedCallNum;
Log.i(TAG, "MissedCallView3");
mCanvas=new Canvas();
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if(sTempMissedCallCount>0)
{
Paint paint=new Paint(Paint.ANTIALIASFLAG);
paint.setColor(Color.RED); Log.i(TAG,"Integer.toString(sTempMissedCallCount)is:"+Integer.toString(sTempMissedCallCount)); canvas.drawText(Integer.toString(sTempMissedCallCount),40,310,paint);//50 invalidate();
Log.i(TAG, "invalidate");
}
}
}
这是自定义view。只跑了 这个构造函数MissedCallView(Context context,int missedCallNum)。是在我定义的public class MissCallObserver extends ContentObserver监听未接电话个数类中调用的。为什么没有跑onDraw函数？请指教。未接电话个数获取是正确的。关键是显示了。