DpiTestActivity.java revision 9066cfe9886ac131c34d59ed0e2d287b0e3c0087
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage com.google.android.test.dpi; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.app.Activity; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Bundle; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.BitmapFactory; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Bitmap; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.BitmapDrawable; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.LinearLayout; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.TextView; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.ScrollView; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class DpiTestActivity extends Activity { 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onCreate(Bundle savedInstanceState) { 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onCreate(savedInstanceState); 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LinearLayout root = new LinearLayout(this); 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project root.setOrientation(LinearLayout.VERTICAL); 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LinearLayout layout = new LinearLayout(this); 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addBitmapDrawable(layout, R.drawable.logo120dpi, true); 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addBitmapDrawable(layout, R.drawable.logo160dpi, true); 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addBitmapDrawable(layout, R.drawable.logo240dpi, true); 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addLabelToRoot(root, "Prescaled bitmap in drawable"); 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addChildToRoot(root, layout); 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layout = new LinearLayout(this); 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addBitmapDrawable(layout, R.drawable.logo120dpi, false); 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addBitmapDrawable(layout, R.drawable.logo160dpi, false); 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addBitmapDrawable(layout, R.drawable.logo240dpi, false); 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addLabelToRoot(root, "Autoscaled bitmap in drawable"); 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addChildToRoot(root, layout); 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layout = new LinearLayout(this); 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addResourceDrawable(layout, R.drawable.logo120dpi); 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addResourceDrawable(layout, R.drawable.logo160dpi); 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addResourceDrawable(layout, R.drawable.logo240dpi); 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addLabelToRoot(root, "Prescaled resource drawable"); 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addChildToRoot(root, layout); 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layout = new LinearLayout(this); 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addCanvasBitmap(layout, R.drawable.logo120dpi, true); 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addCanvasBitmap(layout, R.drawable.logo160dpi, true); 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addCanvasBitmap(layout, R.drawable.logo240dpi, true); 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addLabelToRoot(root, "Prescaled bitmap"); 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addChildToRoot(root, layout); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layout = new LinearLayout(this); 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addCanvasBitmap(layout, R.drawable.logo120dpi, false); 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addCanvasBitmap(layout, R.drawable.logo160dpi, false); 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addCanvasBitmap(layout, R.drawable.logo240dpi, false); 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addLabelToRoot(root, "Autoscaled bitmap"); 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project addChildToRoot(root, layout); 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setContentView(scrollWrap(root)); 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View scrollWrap(View view) { 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ScrollView scroller = new ScrollView(this); 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scroller.addView(view, new ScrollView.LayoutParams(ScrollView.LayoutParams.FILL_PARENT, 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ScrollView.LayoutParams.FILL_PARENT)); 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scroller; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void addLabelToRoot(LinearLayout root, String text) { 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextView label = new TextView(this); 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project label.setText(text); 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project root.addView(label, new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LinearLayout.LayoutParams.WRAP_CONTENT)); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void addChildToRoot(LinearLayout root, LinearLayout layout) { 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project root.addView(layout, new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LinearLayout.LayoutParams.WRAP_CONTENT)); 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void addBitmapDrawable(LinearLayout layout, int resource, boolean scale) { 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bitmap; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bitmap = loadAndPrintDpi(resource, scale); 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = new View(this); 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final BitmapDrawable d = new BitmapDrawable(bitmap); 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!scale) d.setDensityScale(getResources().getDisplayMetrics()); 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.setBackgroundDrawable(d); 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.setLayoutParams(new LinearLayout.LayoutParams(d.getIntrinsicWidth(), 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project d.getIntrinsicHeight())); 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layout.addView(view); 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void addResourceDrawable(LinearLayout layout, int resource) { 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = new View(this); 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable d = getResources().getDrawable(resource); 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.setBackgroundDrawable(d); 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.setLayoutParams(new LinearLayout.LayoutParams(d.getIntrinsicWidth(), 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project d.getIntrinsicHeight())); 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layout.addView(view); 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void addCanvasBitmap(LinearLayout layout, int resource, boolean scale) { 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bitmap; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bitmap = loadAndPrintDpi(resource, scale); 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ScaledBitmapView view = new ScaledBitmapView(this, bitmap); 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LinearLayout.LayoutParams.WRAP_CONTENT)); 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layout.addView(view); 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Bitmap loadAndPrintDpi(int id, boolean scale) { 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bitmap; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scale) { 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bitmap = BitmapFactory.decodeResource(getResources(), id); 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project BitmapFactory.Options opts = new BitmapFactory.Options(); 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project opts.inScaled = false; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bitmap = BitmapFactory.decodeResource(getResources(), id, opts); 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bitmap; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class ScaledBitmapView extends View { 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Bitmap mBitmap; 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ScaledBitmapView(Context context, Bitmap bitmap) { 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBitmap = bitmap; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onMeasure(widthMeasureSpec, heightMeasureSpec); 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setMeasuredDimension(mBitmap.getScaledWidth(), mBitmap.getScaledHeight()); 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDraw(Canvas canvas) { 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDraw(canvas); 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.drawBitmap(mBitmap, 0.0f, 0.0f, null); 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 168