Android Texture View
Android Texture
Dynamic TextureView Creation in Android.
Dynamic TextureView Creation in Android.
Step 1 : Select
File -> New -> Project -> Android Application Project (or)
Android Project. Fill the forms and click "Finish" button. If you have
any doubt regarding create a new project Click Here.
Step 2 : Open res -> layout -> activity_main.xml (or) main.xml and add following code :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/rl"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="@+id/textView1"
android:textSize="18dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="30dp"
android:text="Dynamic TextureView" />
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="30dp"
android:text="Create" />
</RelativeLayout>
Step 3 : Open src -> package -> MainActivity.java and add following code :
package com.gudivada.hemanthsomaraju;
import java.io.IOException;
import android.os.Bundle;
import android.app.Activity;
import android.graphics.SurfaceTexture;
import android.hardware.Camera;
import android.view.Gravity;
import android.view.Menu;
import android.view.TextureView;
import android.view.View;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.RelativeLayout;
import android.widget.Toast;
import android.widget.RelativeLayout.LayoutParams;
public class MainActivity extends Activity implements TextureView.SurfaceTextureListener{
RelativeLayout rl;
Button b;
TextureView texture;
Camera c;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
rl = (RelativeLayout) findViewById(R.id.rl);
b = (Button) findViewById(R.id.button1);
texture = new TextureView(MainActivity.this);
b.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams
((int) LayoutParams.WRAP_CONTENT, (int) LayoutParams.WRAP_CONTENT);
params.topMargin = 250;
texture.setLayoutParams(params);
rl.addView(texture);
Toast.makeText(getBaseContext(), "TextureView Created",
Toast.LENGTH_SHORT).show();
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public void onSurfaceTextureAvailable(SurfaceTexture surface, int width,
int height) {
// TODO Auto-generated method stub
c = Camera.open();
Camera.Size size = c.getParameters().getPreviewSize();
texture.setLayoutParams(new FrameLayout.LayoutParams(
size.width, size.height, Gravity.CENTER));
try {
c.setPreviewTexture(surface);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
c.startPreview();
texture.setAlpha(0.5f);
texture.setRotation(45.0f);
}
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
// TODO Auto-generated method stub
c.stopPreview();
c.release();
return true;
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width,
int height) {
// TODO Auto-generated method stub
}
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surface) {
// TODO Auto-generated method stub
}
}
Step 4 : Open AndroidManifest.xml and add following code :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.gudivada.hemanthsomaraju"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="15" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.gudivada.hemanthsomaraju.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Step 5 : Our output will be like this :