Home | History | Annotate | Download | only in wallpapertest 
      1 /*
      2  * Copyright 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.example.wallpapertest;
     18 
     19 import android.app.Activity;
     20 import android.app.WallpaperManager;
     21 import android.content.Context;
     22 import android.graphics.Point;
     23 import android.graphics.Rect;
     24 import android.os.Bundle;
     25 import android.os.IBinder;
     26 import android.text.Editable;
     27 import android.text.TextUtils;
     28 import android.text.TextWatcher;
     29 import android.util.Log;
     30 import android.view.WindowManager;
     31 import android.widget.TextView;
     32 
     33 public class MainActivity extends Activity {
     34     private static final String TAG = "MainActivity";
     35 
     36     WallpaperManager mWallpaperManager;
     37     WindowManager mWindowManager;
     38 
     39     TextView mDimenWidthView;
     40     TextView mDimenHeightView;
     41 
     42     TextView mWallOffXView;
     43     TextView mWallOffYView;
     44 
     45     TextView mPaddingLeftView;
     46     TextView mPaddingRightView;
     47     TextView mPaddingTopView;
     48     TextView mPaddingBottomView;
     49 
     50     TextView mDispOffXView;
     51     TextView mDispOffYView;
     52 
     53     @Override
     54     public void onCreate(Bundle savedInstanceState) {
     55         super.onCreate(savedInstanceState);
     56         setContentView(R.layout.activity_main);
     57 
     58         mWallpaperManager = (WallpaperManager)getSystemService(Context.WALLPAPER_SERVICE);
     59         mWindowManager = (WindowManager)getSystemService(Context.WINDOW_SERVICE);
     60 
     61         mDimenWidthView = (TextView) findViewById(R.id.dimen_width);
     62         mDimenWidthView.addTextChangedListener(mTextWatcher);
     63         mDimenHeightView = (TextView) findViewById(R.id.dimen_height);
     64         mDimenHeightView.addTextChangedListener(mTextWatcher);
     65 
     66         mWallOffXView = (TextView) findViewById(R.id.walloff_x);
     67         mWallOffXView.addTextChangedListener(mTextWatcher);
     68         mWallOffYView = (TextView) findViewById(R.id.walloff_y);
     69         mWallOffYView.addTextChangedListener(mTextWatcher);
     70 
     71         mPaddingLeftView = (TextView) findViewById(R.id.padding_left);
     72         mPaddingLeftView.addTextChangedListener(mTextWatcher);
     73         mPaddingRightView = (TextView) findViewById(R.id.padding_right);
     74         mPaddingRightView.addTextChangedListener(mTextWatcher);
     75         mPaddingTopView = (TextView) findViewById(R.id.padding_top);
     76         mPaddingTopView.addTextChangedListener(mTextWatcher);
     77         mPaddingBottomView = (TextView) findViewById(R.id.padding_bottom);
     78         mPaddingBottomView.addTextChangedListener(mTextWatcher);
     79 
     80         mDispOffXView = (TextView) findViewById(R.id.dispoff_x);
     81         mDispOffXView.addTextChangedListener(mTextWatcher);
     82         mDispOffYView = (TextView) findViewById(R.id.dispoff_y);
     83         mDispOffYView.addTextChangedListener(mTextWatcher);
     84 
     85         updateDimens();
     86         updateWallOff();
     87         updatePadding();
     88         updateDispOff();
     89     }
     90 
     91     private int loadPropIntText(TextView view, int baseVal) {
     92         String str = view.getText().toString();
     93         if (str != null && !TextUtils.isEmpty(str)) {
     94             try {
     95                 float fval = Float.parseFloat(str);
     96                 return (int)(fval*baseVal);
     97             } catch (NumberFormatException e) {
     98                 Log.i(TAG, "Bad number: " + str, e);
     99             }
    100         }
    101         return baseVal;
    102     }
    103 
    104     private float loadFloatText(TextView view) {
    105         String str = view.getText().toString();
    106         if (str != null && !TextUtils.isEmpty(str)) {
    107             try {
    108                 return Float.parseFloat(str);
    109             } catch (NumberFormatException e) {
    110                 Log.i(TAG, "Bad number: " + str, e);
    111             }
    112         }
    113         return 0;
    114     }
    115 
    116     private int loadIntText(TextView view) {
    117         String str = view.getText().toString();
    118         if (str != null && !TextUtils.isEmpty(str)) {
    119             try {
    120                 return Integer.parseInt(str);
    121             } catch (NumberFormatException e) {
    122                 Log.i(TAG, "Bad number: " + str, e);
    123             }
    124         }
    125         return 0;
    126     }
    127 
    128     public void updateDimens() {
    129         Point minDims = new Point();
    130         Point maxDims = new Point();
    131         mWindowManager.getDefaultDisplay().getCurrentSizeRange(minDims, maxDims);
    132         mWallpaperManager.suggestDesiredDimensions(
    133                 loadPropIntText(mDimenWidthView, maxDims.x),
    134                 loadPropIntText(mDimenHeightView, maxDims.y));
    135     }
    136 
    137     public void updateWallOff() {
    138         IBinder token = getWindow().getDecorView().getWindowToken();
    139         if (token != null) {
    140             mWallpaperManager.setWallpaperOffsets(token, loadFloatText(mWallOffXView),
    141                     loadFloatText(mWallOffYView));
    142         }
    143     }
    144 
    145     public void updatePadding() {
    146         Rect padding = new Rect();
    147         padding.left = loadIntText(mPaddingLeftView);
    148         padding.top = loadIntText(mPaddingTopView);
    149         padding.right = loadIntText(mPaddingRightView);
    150         padding.bottom = loadIntText(mPaddingBottomView);
    151         mWallpaperManager.setDisplayPadding(padding);
    152     }
    153 
    154     public void updateDispOff() {
    155         IBinder token = getWindow().getDecorView().getWindowToken();
    156         if (token != null) {
    157             mWallpaperManager.setDisplayOffset(token, loadIntText(mDispOffXView),
    158                     loadIntText(mDispOffYView));
    159         }
    160     }
    161 
    162     final TextWatcher mTextWatcher = new TextWatcher() {
    163         @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) {
    164         }
    165 
    166         @Override public void onTextChanged(CharSequence s, int start, int before, int count) {
    167             updateDimens();
    168             updateWallOff();
    169             updatePadding();
    170             updateDispOff();
    171         }
    172 
    173         @Override public void afterTextChanged(Editable s) {
    174         }
    175     };
    176 }
    177