| /* |
| * Copyright (C) 2011 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 com.android.test.hwui; |
| |
| import android.app.Activity; |
| import android.graphics.Matrix; |
| import android.graphics.SurfaceTexture; |
| import android.hardware.Camera; |
| import android.os.Bundle; |
| import android.view.Gravity; |
| import android.view.TextureView; |
| import android.view.View; |
| import android.widget.Button; |
| import android.widget.FrameLayout; |
| |
| import java.io.IOException; |
| |
| @SuppressWarnings({"UnusedDeclaration"}) |
| public class TextureViewActivity extends Activity implements TextureView.SurfaceTextureListener { |
| private Camera mCamera; |
| private TextureView mTextureView; |
| private FrameLayout mContent; |
| private Matrix mMatrix = new Matrix(); |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| mContent = new FrameLayout(this); |
| |
| mTextureView = new TextureView(this); |
| mTextureView.setSurfaceTextureListener(this); |
| |
| Button button = new Button(this); |
| button.setText("Remove/Add"); |
| button.setOnClickListener(new View.OnClickListener() { |
| private boolean mAdded = true; |
| |
| @Override |
| public void onClick(View v) { |
| if (mAdded) { |
| mContent.removeView(mTextureView); |
| } else { |
| mContent.addView(mTextureView); |
| } |
| mAdded = !mAdded; |
| } |
| }); |
| |
| mContent.addView(mTextureView, new FrameLayout.LayoutParams( |
| FrameLayout.LayoutParams.WRAP_CONTENT, FrameLayout.LayoutParams.WRAP_CONTENT, |
| Gravity.CENTER)); |
| mContent.addView(button, new FrameLayout.LayoutParams( |
| FrameLayout.LayoutParams.WRAP_CONTENT, FrameLayout.LayoutParams.WRAP_CONTENT, |
| Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM)); |
| setContentView(mContent); |
| } |
| |
| @Override |
| public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) { |
| mCamera = Camera.open(); |
| Camera.Size previewSize = mCamera.getParameters().getPreviewSize(); |
| mTextureView.setLayoutParams(new FrameLayout.LayoutParams( |
| previewSize.width, previewSize.height, Gravity.CENTER)); |
| |
| try { |
| mCamera.setPreviewTexture(surface); |
| } catch (IOException t) { |
| android.util.Log.e("TextureView", "Cannot set preview texture target!", t); |
| } |
| |
| mCamera.startPreview(); |
| } |
| |
| @Override |
| public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { |
| // Ignored, the Camera does all the work for us |
| } |
| |
| @Override |
| public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { |
| mCamera.stopPreview(); |
| mCamera.release(); |
| return true; |
| } |
| |
| @Override |
| public void onSurfaceTextureUpdated(SurfaceTexture surface) { |
| // Ignored |
| } |
| } |