<com.hualu.softinput.RelativeLayoutResize xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginTop="25dp"
android:text="@string/hello_world" />
<EditText
android:id="@+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:ems="10" >
</EditText>
</com.hualu.softinput.RelativeLayoutResize>
com.hualu.softinput.RelativeLayoutResize:
package com.hualu.softinput; import android.content.Context; import android.util.AttributeSet; import android.widget.RelativeLayout; public class RelativeLayoutResize extends RelativeLayout { private OnRelativeLayoutResizeListener listener ; public RelativeLayoutResize(Context context) { super(context); } public RelativeLayoutResize(Context context, AttributeSet attrs) { super(context, attrs) ; } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); System.out.println("onMeasure() ---> width = " + widthMeasureSpec + " , height = " + heightMeasureSpec); } @Override protected void onLayout(boolean changed, int l, int t, int r, int b) { super.onLayout(changed, l, t, r, b); System.out.println("onLayout() -----> changed = " + changed + " , l = " + l + " , t = " + t + " , r = " + r + " , b = " + b ); } @Override protected void onSizeChanged(int w, int h, int oldw, int oldh) { super.onSizeChanged(w, h, oldw, oldh); System.out.println("onSizeChanged() ----> w = " + w + " , h = " + h + " , oldW = " + oldw + " , oldH = " + oldh); if(listener != null && h < oldh){ listener.onResize() ; } } public void setOnRelativeLayoutResizeListener(OnRelativeLayoutResizeListener listener){ this.listener = listener ; } public interface OnRelativeLayoutResizeListener{ void onResize() ; } }
启动应用的界面:
打印的Log:
输入法起来:
Log信息:
当界面改变布局时:
<com.hualu.softinput.RelativeLayoutResize xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<EditText
android:id="@+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="20dp"
android:ems="10" >
<requestFocus />
</EditText>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_marginBottom="64dp"
android:text="@string/hello_world" />
</com.hualu.softinput.RelativeLayoutResize>
启动界面为:
Log信息:
启动输入法之后:
Log信息:
结论:
从上面log信息,可以得出在平移模式下,启动输入法和退出输入法都不会出发onSizeChange()方法。
2. 压缩调整模式android:windowSoftInputMode="adjustResize"
当为蓝色Layout时:
启动界面:
Log信息:
退出输入法之后:
Log信息:
当Layout为绿色的内容时:
启动应用界面:
Log信息:
退出输入法之后:
Log信息:
结论:
在压缩模式下, 输入法的启动和退出都会触发onSizeChange()方法的调用。
3. 压缩模式,监听输入法的显示和隐藏:
因此,在压缩模式下可以做到监听输入法的显示与隐藏。
方法如com.hualu.softinput.RelativeLayoutResize中在onSizeChange()方法里面自定义一个事件,监听高度的变法:
if(listener != null && h < oldh){ listener.onResize() ; }
package com.hualu.softinput; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.view.View; import android.widget.TextView; import com.hualu.softinput.RelativeLayoutResize.OnRelativeLayoutResizeListener; public class MainActivity extends Activity { private TextView text ; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); text = (TextView)this.findViewById(R.id.text) ; RelativeLayoutResize rlr = (RelativeLayoutResize)this.findViewById(R.id.contenter) ; rlr.setFocusableInTouchMode(true ) ; rlr.setOnRelativeLayoutResizeListener(new OnRelativeLayoutResizeListener() { @Override public void onResize() { text.setVisibility(View.GONE) ; } }) ; } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_main, menu); return true; } }