package com.example.photobrowser;

 

import android.support.v7.app.ActionBarActivity;

import android.support.v7.app.ActionBar;

import android.support.v4.app.Fragment;

import android.content.Context;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.Matrix;

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.view.View.OnClickListener;

import android.view.Window;

import android.view.WindowManager;

import android.widget.ImageView;

import android.widget.ImageView.ScaleType;

import android.widget.LinearLayout;

import android.os.Build;

public class MainActivity extends ActionBarActivity {

private static final ScaleType CENTER_CROP = null;

int []images=new int[]

{R.drawable.a,

R.drawable.b,

R.drawable.d,

R.drawable.e,

R.drawable.f

};

int currentImg=0;

@Override

protected void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

//隐藏Action Bar

this.requestWindowFeature(Window.FEATURE_NO_TITLE);

setContentView(R.layout.activity_main);

//隐藏状态栏

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

LinearLayout main = (LinearLayout) findViewById(R.id.root);

final ImageView image =new ImageView(this);

main.addView(image);

image.setImageResource(images[0]);

image.setScaleType(ScaleType.CENTER_CROP );

image.setOnClickListener(new OnClickListener()

{

@Override

public void onClick(View v)

{

// 改变ImageView里显示的图片

image.setImageResource(images[++currentImg % images.length]);

}

});

}

class MyView extends View{

private Bitmap bitMap;

private Matrix matrix;

public MyView(Context context) {

super(context);

matrix = new Matrix();

matrix.setScale(100f/bitMap.getWidth(), 100f/bitMap.getHeight());

matrix.postTranslate(150, 150);

matrix.postSkew(0.2f,0.2f,150,150);//拉伸

}

@Override

protected void onDraw(Canvas canvas) {

super.onDraw(canvas);

canvas.drawBitmap(bitMap, matrix, null);

}

}

}