我想将TextureView用作相机。但我有一个黑屏。
我的班级：
package com.sm.carpet.activity;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.graphics.SurfaceTexture;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.Display;
import android.view.Menu;
import android.view.MenuItem;
import android.view.Surface;
import android.view.TextureView;
import android.view.View;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.sm.carpet.R;
import com.sm.carpet.view.ModelSurfaceView;
import com.sm.carpet.services.ExampleSceneLoader;
import com.sm.carpet.services.SceneLoader;
import com.sm.carpet.utils.ContentUtils;
import com.sm.carpet.utils.Utils;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
/**
* This activity represents the container for our 3D viewer.
*
* @author andresoviedo
*/
public class TDModelActivity extends Activity implements TextureView.SurfaceTextureListener{
private final static String TAG = TDModelActivity.class.getName();
private android.hardware.Camera mCamera;
private SurfaceTexture mSurfaceTexture;
private static final int REQUEST_CODE_OPEN_FILE = 1000;
private String paramAssetDir;
private String paramAssetFilename;
/**
* The file to load. Passed as input parameter
*/
private String paramFilename;
/**
* Enter into Android Immersive mode so the renderer is full screen or not
*/
private boolean immersiveMode = true;
/**
* Background GL clear color. Default is light gray
*/
private float[] backgroundColor = new float[]{0.2f, 0.2f, 0.2f, 1.0f};
private ModelSurfaceView gLView;
private TextView mTextView;
private SceneLoader scene;
private Handler handler;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_model_textureview);
// Try to get input parameters
Bundle b = getIntent().getExtras();
if (b != null) {
this.paramAssetDir = b.getString("assetDir");
this.paramAssetFilename = b.getString("assetFilename");
this.paramFilename = b.getString("uri");
this.immersiveMode = "true".equalsIgnoreCase(b.getString("immersiveMode"));
try{
String[] backgroundColors = b.getString("backgroundColor").split(" ");
backgroundColor[0] = Float.parseFloat(backgroundColors[0]);
backgroundColor[1] = Float.parseFloat(backgroundColors[1]);
backgroundColor[2] = Float.parseFloat(backgroundColors[2]);
backgroundColor[3] = Float.parseFloat(backgroundColors[3]);
}catch(Exception ex){
// Assuming default background color
}
}
Log.i("Renderer", "Params: assetDir '" + paramAssetDir + "', assetFilename '" + paramAssetFilename + "', uri '"
+ paramFilename + "'");
handler = new Handler(getMainLooper());
gLView = new ModelSurfaceView(this);
gLView.setZOrderOnTop(true);
RelativeLayout lyCamera = (RelativeLayout) findViewById(R.id.ly_parent_camera);
TextureView textureView = new TextureView(this);
textureView.setSurfaceTextureListener(this);
lyCamera.addView(textureView);
LinearLayout lyModel = (LinearLayout) findViewById(R.id.ly_parent_model);
//lyModel.addView(gLView);
if (paramFilename == null && paramAssetFilename == null) {
scene = new ExampleSceneLoader(this);
} else {
scene = new SceneLoader(this);
}
scene.init();
// Show the Up button in the action bar.
setupActionBar();
// TODO: Alert user when there is no multitouch support (2 fingers). He won't be able to rotate or zoom for
// example
Utils.printTouchCapabilities(getPackageManager());
setupOnSystemVisibilityChangeListener();
}
/**
* Set up the {@link android.app.ActionBar}, if the API is available.
*/
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
private void setupActionBar() {
// if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
// getActionBar().setDisplayHomeAsUpEnabled(true);
// }
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
private void setupOnSystemVisibilityChangeListener() {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
getWindow().getDecorView().setOnSystemUiVisibilityChangeListener(new View.OnSystemUiVisibilityChangeListener() {
@Override
public void onSystemUiVisibilityChange(int visibility) {
// Note that system bars will only be "visible" if none of the
// LOW_PROFILE, HIDE_NAVIGATION, or FULLSCREEN flags are set.
if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
// TODO: The system bars are visible. Make any desired
// adjustments to your UI, such as showing the action bar or
// other navigational controls.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
hideSystemUIDelayed(3000);
}
} else {
// TODO: The system bars are NOT visible. Make any desired
// adjustments to your UI, such as hiding the action bar or
// other navigational controls.
}
}
});
}
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
if (hasFocus) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
if (immersiveMode) hideSystemUIDelayed(5000);
}
}
}
private void hideSystemUIDelayed(long millis) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
handler.postDelayed(new Runnable() {
public void run() {
hideSystemUI();
}
}, millis);
}
private void hideSystemUI() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
hideSystemUIKitKat();
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
hideSystemUIJellyBean();
}
}
// This snippet hides the system bars.
@TargetApi(Build.VERSION_CODES.KITKAT)
private void hideSystemUIKitKat() {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
// Set the IMMERSIVE flag.
// Set the content to appear under the system bars so that the content
// doesn't resize when the system bars hide and show.
final View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION // hide nav bar
| View.SYSTEM_UI_FLAG_FULLSCREEN // hide status bar
| View.SYSTEM_UI_FLAG_IMMERSIVE);
}
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
private void hideSystemUIJellyBean() {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
return;
}
final View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_LOW_PROFILE);
}
// This snippet shows the system bars. It does this by removing all the flags
// except for the ones that make the content appear under the system bars.
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
private void showSystemUI() {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
return;
}
final View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
}
public File getParamFile() {
return getParamFilename() != null ? new File(getParamFilename()) : null;
}
public String getParamAssetDir() {
return paramAssetDir;
}
public String getParamAssetFilename() {
return paramAssetFilename;
}
public String getParamFilename() {
return paramFilename;
}
public float[] getBackgroundColor(){
return backgroundColor;
}
public SceneLoader getScene() {
return scene;
}
public ModelSurfaceView getgLView() {
return gLView;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case REQUEST_CODE_OPEN_FILE:
if (resultCode == RESULT_OK) {
// The URI of the selected file
final Uri uri = data.getData();
Log.i("Menu", "Loading '" + uri.toString() + "'");
if (uri != null) {
final String path = ContentUtils.getPath(getApplicationContext(), uri);
if (path != null) {
try {
scene.loadTexture(null, new URL("file://"+path));
} catch (MalformedURLException e) {
Toast.makeText(getApplicationContext(), "Problem loading texture '" + uri.toString() + "'",
Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(getApplicationContext(), "Problem loading texture '" + uri.toString() + "'",
Toast.LENGTH_SHORT).show();
}
}
} else {
Toast.makeText(getApplicationContext(), "Result when loading texture was '" + resultCode + "'",
Toast.LENGTH_SHORT).show();
}
}
}
///////////////
/*
*
* START CAMERA
*
*/
@Override
public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
mSurfaceTexture = surface;
//if (!PermissionHelper.hasCameraPermission(this)) {
// PermissionHelper.requestCameraPermission(this, false);
//} else {
Log.e("masoud","ali");
startPreview();
//}
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
}
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
mCamera.stopPreview();
mCamera.release();
return true;
}
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {
}
private void startPreview() {
mCamera = android.hardware.Camera.open();
if (mCamera == null) {
// Seeing this on Nexus 7 2012 -- I guess it wants a rear-facing camera, but
// there isn't one. TODO: fix
throw new RuntimeException("Default camera not available");
}
try {
mCamera.setPreviewTexture(mSurfaceTexture);
Display display = ((WindowManager)getApplicationContext().getSystemService(WINDOW_SERVICE)).getDefaultDisplay();
if(display.getRotation() == Surface.ROTATION_0) {
mCamera.setDisplayOrientation(90);
}
if(display.getRotation() == Surface.ROTATION_270) {
mCamera.setDisplayOrientation(180);
}
mCamera.startPreview();
} catch (IOException ioe) {
// Something bad happened
Log.e(TAG,"Exception starting preview", ioe);
}
}
}
我的布局：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="2">
<RelativeLayout
android:id="@+id/ly_parent_camera"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/ly_parent_model">
</LinearLayout>
<TextureView
android:id="@+id/textureView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent"/>
</RelativeLayout>
</LinearLayout>
我的权限：
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<uses-feature
android:name="android.hardware.camera"
android:required="false" />
答案 0 :(得分：0)
解决：
我使用hardwareAccelerated：
<Application
android:hardwareAccelerated="true"