小编Tom*_*sss的帖子

我正在学习Android.我有一个问题,我无法解决它.我想从现有数据库中检索数据并TextView在单击后按钮中显示它.

我的代码DataBaseHelper看起来像这样:

public class DataBaseHelper extends SQLiteOpenHelper {

            //The Android's default system path of your application database.    
            private static String DB_PATH = "/data/data/in.ekonomia.android/databases/";     
            private static String DB_NAME = "cytaty";     
            private SQLiteDatabase myDataBase;      
            private final Context myContext;     

        /**     * Constructor     * Takes and keeps a reference of the passed context in order to access to the application assets and resources.     * @param context     */    
    public DataBaseHelper(Context context) 
    {       
        super(context, DB_NAME, null, 1);        
        this.myContext = context;    

    }      
    /** …

我制作动态壁纸,我有一个问题.我想将图像设置为背景,Eclipse显示错误:

01-10 10:37:18.206: E/AndroidRuntime(1045): FATAL EXCEPTION: GLThread 99
01-10 10:37:18.206: E/AndroidRuntime(1045): com.badlogic.gdx.utils.GdxRuntimeException: Texture width and height must be powers of two: 480x800

我的代码看起来像:

public class Tapeta implements ApplicationListener {


    private SpriteBatch batch;
    private Texture texture;
    private TextureRegion region;


    @Override
    public void create() {      
        texture = new Texture(Gdx.files.internal("data/cat.jpg"));
        Texture.setEnforcePotImages(false); 

    }

    @Override
    public void dispose() {
        texture.dispose();
    }

    @Override
    public void render() {
        Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT); 
        batch.begin();
        batch.draw(texture, 0, 0);
        batch.end();
    }

    @Override
    public void resize(int width, int height) {
    }

    @Override
    public void …