android 顶部imageview溢出

ImageView currentImage;
int dpScale;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(id.toolbar);
setSupportActionBar(toolbar);
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
dpScale = (int)metrics.density;
FloatingActionButton fab = (FloatingActionButton) findViewById(id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, “Replace with your own action”, Snackbar.LENGTH_LONG)
.setAction(“Action”, null).show();
}
});
//动态绘制64个带不同图片的网格
addImageView();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.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.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.Game_difficult) {
return true;
}
return super.onOptionsItemSelected(item);
}
public void addImageView(){
gridView = (GridLayout)findViewById(id.gridLayout);
for(int i = 0; i < 64; i++){
imageView = new ImageView(this);
//为每一个网格设置一个ID，然后给每一个网格附随机的图片,网格与图片之间是相互分离的
imageView.setId(i);
//随机产生一个数，然后通过这个数去获取图片
int random = getRandom();
switch (random){
case 1:
imageView.setBackgroundResource(drawable.icon_1);
break;
case 2:
imageView.setBackgroundResource(drawable.icon_2);
break;
case 3:
imageView.setBackgroundResource(drawable.icon_3);
break;
case 4:
imageView.setBackgroundResource(drawable.icon_4);
break;
case 5:
imageView.setBackgroundResource(drawable.icon_5);
break;
case 6:
imageView.setBackgroundResource(drawable.icon_6);
break;
case 7:
imageView.setBackgroundResource(drawable.icon_7);
break;
case 8:
imageView.setBackgroundResource(drawable.icon_8);
break;
}
ViewGroup.LayoutParams params = new GridLayout.LayoutParams();
imageView.setLayoutParams(new LinearLayout.LayoutParams(125,125));
imageView.setClickable(true);
//为每一个imageView设置监听事件
imageView.setOnClickListener(this);
gridView.addView(imageView);
}
}
public int getRandom(){
Random random = new Random();//定义随机类
int result = random.nextInt(8);
return result+1;
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
public void onClick(View v) {
handleImageView((ImageView)v);
}
public void handleImageView(ImageView imageView){
imageView.setImageResource(drawable.background_border);
currentImage = imageView;
}
}
2. background_border.xml