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Diffstat (limited to 'tests/WindowAnimationJank/src/android/windowanimationjank/ElementLayoutActivity.java')
| -rw-r--r-- | tests/WindowAnimationJank/src/android/windowanimationjank/ElementLayoutActivity.java | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/tests/WindowAnimationJank/src/android/windowanimationjank/ElementLayoutActivity.java b/tests/WindowAnimationJank/src/android/windowanimationjank/ElementLayoutActivity.java new file mode 100644 index 000000000000..3b1fabcb59ec --- /dev/null +++ b/tests/WindowAnimationJank/src/android/windowanimationjank/ElementLayoutActivity.java @@ -0,0 +1,159 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except + * in compliance with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software distributed under the License + * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express + * or implied. See the License for the specific language governing permissions and limitations under + * the License. + */ +package android.windowanimationjank; + +import java.util.Random; + +import android.app.Activity; +import android.os.Bundle; +import android.view.ViewTreeObserver.OnPreDrawListener; +import android.widget.Chronometer; +import android.widget.RadioButton; +import android.widget.Switch; +import android.widget.TextView; +import android.widget.ToggleButton; + +/* + * Activity with arbitrary number of random UI elements, refresh itself constantly. + */ +public class ElementLayoutActivity extends Activity implements OnPreDrawListener { + public final static String NUM_ELEMENTS_KEY = "num_elements"; + + private final static int DEFAULT_NUM_ELEMENTS = 100; + private final static int BACKGROUND_COLOR = 0xfffff000; + private final static int INDICATOR_COLOR = 0xffff0000; + + private FlowLayout mLayout; + // Use the constant seed in order to get predefined order of elements. + private Random mRandom = new Random(0); + // Blinker indicator for visual feedback that Activity is currently updating. + private TextView mIndicator; + private static float mIndicatorState; + + @Override + protected void onCreate(final Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.flowlayout); + + mLayout = (FlowLayout)findViewById(R.id.root_flow_layout); + mLayout.setBackgroundColor(BACKGROUND_COLOR); + + mIndicator = new TextView(this); + mLayout.addView(mIndicator); + mIndicator.setText("***\n***"); + mIndicator.setBackgroundColor(BACKGROUND_COLOR); + mIndicatorState = 0.0f; + + // Need constantly invalidate view in order to get max redraw rate. + mLayout.getViewTreeObserver().addOnPreDrawListener(this); + + // Read requested number of elements in layout. + int numElements = getIntent().getIntExtra(NUM_ELEMENTS_KEY, DEFAULT_NUM_ELEMENTS); + + for (int i = 0; i < numElements; ++i) { + switch (mRandom.nextInt(5)) { + case 0: + createRadioButton(); + break; + case 1: + createToggleButton(); + break; + case 2: + createSwitch(); + break; + case 3: + createTextView(); + break; + case 4: + createChronometer(); + break; + } + } + + setContentView(mLayout); + } + + private void createTextView() { + TextView textView = new TextView(this); + int lineCnt = mRandom.nextInt(4); + StringBuffer buffer = new StringBuffer(); + for (int i = 0; i < lineCnt; ++i) { + if (i != 0) { + buffer.append("\n"); + } + buffer.append("Line:" + mRandom.nextInt()); + } + textView.setText(buffer); + mLayout.addView(textView); + } + + private void createRadioButton() { + RadioButton button = new RadioButton(this); + button.setText("RadioButton:" + mRandom.nextInt()); + mLayout.addView(button); + } + + private void createToggleButton() { + ToggleButton button = new ToggleButton(this); + button.setChecked(mRandom.nextBoolean()); + mLayout.addView(button); + } + + private void createSwitch() { + Switch button = new Switch(this); + button.setChecked(mRandom.nextBoolean()); + mLayout.addView(button); + } + + private void createChronometer() { + Chronometer chronometer = new Chronometer(this); + chronometer.setBase(mRandom.nextLong()); + mLayout.addView(chronometer); + chronometer.start(); + } + + @Override + protected void onResume() { + super.onResume(); + } + + @Override + protected void onPause() { + super.onPause(); + } + + @Override + public boolean onPreDraw() { + // Interpolate indicator color + int background = 0xff000000; + for (int i = 0; i < 3; ++i) { + int shift = 8 * i; + int colorB = (BACKGROUND_COLOR >> shift) & 0xff; + int colorI = (INDICATOR_COLOR >> shift) & 0xff; + int color = (int)((float)colorB * (1.0f - mIndicatorState) + + (float)colorI * mIndicatorState); + if (color > 255) { + color = 255; + } + background |= (color << shift); + } + + mIndicator.setBackgroundColor(background); + mIndicatorState += (3 / 60.0f); // around 3 times per second + mIndicatorState = mIndicatorState - (int)mIndicatorState; + + mLayout.postInvalidate(); + return true; + } +}
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