Android Open Source - ExpertAndroid Main Activity

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License

The source code is released under:

MIT License

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Java Source Code

package com.iuriio.demos.expertandroid.ch9openglexperiments;
/* w  w w .j  ava 2 s  .  c  om*/
import android.app.ActivityManager;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ConfigurationInfo;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;

public class MainActivity extends ActionBarActivity implements View.OnClickListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.setContentView(R.layout.activity_main);

        this.findViewById(R.id.openglEs10Button).setOnClickListener(this);

        final View openGl20Button = this.findViewById(R.id.openglEs20Button);
        if (openGl20Button != null) {
            if (!this.detectOpenGL20()) {
                openGl20Button.setEnabled(false);
            }
            openGl20Button.setOnClickListener(this);
        }
    }

    private boolean detectOpenGL20() {
        ActivityManager manager = (ActivityManager) this.getSystemService(Context.ACTIVITY_SERVICE);
        ConfigurationInfo info = manager.getDeviceConfigurationInfo();
        assert info != null;
        return info.reqGlEsVersion >= 0x20000;
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        switch (item.getItemId()) {
            case R.id.action_settings:
                return true;
        }
        return super.onOptionsItemSelected(item);
    }

    /**
     * Called when a view has been clicked.
     *
     * @param v The view that was clicked.
     */
    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.openglEs10Button:
                this.startActivity(new Intent(this, OpenGLES10Activity.class));
                break;
            case R.id.openglEs20Button:
                this.startActivity(new Intent(this, OpenGLES20Activity.class));
                break;
        }
    }
}

Java Source Code List