我的应用程序中有一个 Layout，它有 5 个 Frame Layouts。我在 Graphical Layout 中设计了它。它显示完美布局。但是当我在设备中运行应用程序时，它没有显示带有键盘符号的 2 个绿色按钮。它仅显示应用程序中的 红色区域。
我已经用另一个 Activity 测试了布局。它工作得很好。我认为下面的 class 有错误。我找不到它发生的地方？？？
LogCat 中没有显示任何内容...
所以帮助我朝着正确的方向:)
感谢您的帮助...
布局代码
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<FrameLayout
android:id="@+id/flKeyboardButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:background="@drawable/keyboard_off"
android:maxHeight="100.0dip"
android:maxWidth="60.0dip"
android:minHeight="100.0dip"
android:minWidth="60.0dip" />
<FrameLayout
android:id="@+id/flLeftButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_toLeftOf="@id/flKeyboardButton"
android:background="@drawable/left_button_off"
android:maxHeight="100.0dip"
android:minHeight="100.0dip" />
<FrameLayout
android:id="@+id/flRightButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_toRightOf="@id/flKeyboardButton"
android:background="@drawable/left_button_off"
android:maxHeight="100.0dip"
android:minHeight="100.0dip" />
<FrameLayout
android:id="@+id/flAdvancedPanel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:background="@drawable/advanced"
android:maxHeight="96dp" >
</FrameLayout>
<FrameLayout
android:id="@+id/flTouchPad"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_above="@id/flKeyboardButton"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:background="@drawable/touchpad" />
<EditText
android:id="@+id/etAdvancedText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="-100dp"
android:inputType="textMultiLine"
android:maxHeight="32dp"
android:visibility="visible" />
</RelativeLayout>
这是Java代码
public class PadActivity extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_mouse);
Settings.init(this.getApplicationContext());
// Hide the title bar
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
if (this.lock == null) {
Context appContext = this.getApplicationContext();
// get wake lock
PowerManager manager = (PowerManager) appContext.getSystemService(Context.POWER_SERVICE);
this.lock = manager.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK, this.getString(R.string.app_name));
// prepare sensor Listener
this.mSensorListener = new SensorEventListener() {
// @Override
public void onSensorChanged(SensorEvent event) {
Sensor sensor = event.sensor;
int type = sensor.getType();
switch (type) {
case Sensor.TYPE_ACCELEROMETER:
onAccelerometer(event.values);
break;
case Sensor.TYPE_MAGNETIC_FIELD:
onMagnetic(event.values);
break;
// case Sensor.TYPE_ORIENTATION:
// break;
}
}
// @Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
// no use for this
}
};
if (useOrientation) {
// enable Sensors
enableSensors();
}
/**
* Caches information and forces WrappedMotionEvent class to load at
* Activity startup (avoid initial lag on touchpad).
*/
this.mIsMultitouchEnabled = WrappedMotionEvent.isMutitouchCapable();
// Setup accelerations
mMouseSensitivityPower = 1 + ((double) Settings.sensitivity) / 100d;
mScrollStep = (sScrollStepMin - sScrollStepMax) * (sScrollMaxSettingsValue - Settings.scrollSensitivity) / sScrollMaxSettingsValue + sScrollStepMax;
Log.d(TAG, "mScrollStep=" + mScrollStep);
Log.d(TAG, "Settings.sensitivity=" + Settings.scrollSensitivity);
//
this.accel = new Point3D();
this.mag = new Point3D();
this.lastSpace = new CoordinateSpace();
this.currSpace = new CoordinateSpace();
// UI runnables
this.rLeftDown = new Runnable() {
public void run() {
drawButtonOn(flLeftButton);
}
};
this.rLeftUp = new Runnable() {
public void run() {
drawButtonOff(flLeftButton);
}
};
this.rRightDown = new Runnable() {
public void run() {
drawButtonOn(flRightButton);
}
};
this.rRightUp = new Runnable() {
public void run() {
drawButtonOff(flRightButton);
}
};
this.rMidDown = new Runnable() {
public void run() {
drawSoftOn();
}
};
this.rMidUp = new Runnable() {
public void run() {
drawSoftOff();
}
};
// window manager stuff
getWindow().setFlags(32, 32);
// this.getWindow().setFlags(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN,
// WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
}
//
try {
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
int width = getApplicationContext().getResources().getDisplayMetrics().widthPixels;
int height = getApplicationContext().getResources().getDisplayMetrics().heightPixels;
Log.i("Width", "" + width);
Log.i("height", "" + height);
this.sender = new OSCPortOut(InetAddress.getByName(Settings.ip), OSCPort.defaultSCOSCPort());
//
this.initTouchpad();
this.initLeftButton();
this.initRightButton();
this.initMidButton();
this.initAdvancedPanel();
this.initAdvancedText();
} catch (Exception ex) {
Log.d(TAG, ex.toString());
}
}
private void initTouchpad() {
FrameLayout fl = (FrameLayout) this.findViewById(R.id.flTouchPad);
// let's set up a touch listener
fl.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent ev) {
return onMouseMove(ev);
}
});
}
private void initLeftButton() {
FrameLayout fl = (FrameLayout) this.findViewById(R.id.flLeftButton);
android.view.ViewGroup.LayoutParams lp = fl.getLayoutParams();
// if(!Settings.hideMouseButtons) lp.height=0;
fl.setLayoutParams(lp);
// listener
fl.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent ev) {
return onLeftTouch(ev);
}
});
this.flLeftButton = fl;
}
private void initRightButton() {
FrameLayout iv = (FrameLayout) this.findViewById(R.id.flRightButton);
android.view.ViewGroup.LayoutParams lp = iv.getLayoutParams();
// if(!Settings.hideMouseButtons) lp.height=0;
iv.setLayoutParams(lp);
// listener
iv.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent ev) {
return onRightTouch(ev);
}
});
this.flRightButton = iv;
}
private void initMidButton() {
FrameLayout fl = (FrameLayout) this.findViewById(R.id.flKeyboardButton);
android.view.ViewGroup.LayoutParams lp = fl.getLayoutParams();
// if(!Settings.hideMouseButtons) lp.height=0;
fl.setLayoutParams(lp);
// listener
fl.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent ev) {
return onMidTouch(ev);
}
});
this.flMidButton = fl;
}
最佳答案
看来您的 java 文件代码有误。您的第一个函数应该是 OnCreate()，其余代码应该写在这之后。
即使您在很长的代码之后设置了您的 View ，这也是完全错误的。
public class PadActivity extends Activity {
// set your variables & objects
..
..
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.pad_layout);
...
... //Other code
}
}
请更改您肯定会工作的代码位置。
关于java - 布局未显示为图形布局中所示？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/21165595/