【笔记】根据屏幕的宽度动态设置image宽高

重点：需要给你的ImageView布局加上

android:adjustViewBounds=”true”

android:scaleType=”fitXY”

<ImageView
android:id="@+id/iv_code"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="30dip"
android:scaleType="fitXY"
android:adjustViewBounds="true"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
/>```

代码中：

int screenWidth = getScreenWidth(this);

ViewGroup.LayoutParams lp = iv_code.getLayoutParams();

lp.width = screenWidth;

lp.height = screenWidth;

iv_code.setLayoutParams(lp);

iv_code.setMaxWidth(screenWidth);

iv_code.setMaxHeight(screenWidth * 5);

//获取屏幕的宽度

public static int getScreenWidth(Context context) {

WindowManager manager = (WindowManager) context

.getSystemService(Context.WINDOW_SERVICE);

Display display = manager.getDefaultDisplay();

return display.getWidth();

}

//获取屏幕的高度

public static int getScreenHeight(Context context) {

WindowManager manager = (WindowManager) context

.getSystemService(Context.WINDOW_SERVICE);

Display display = manager.getDefaultDisplay();

return display.getHeight();

}

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