1、先定义一个按钮(activity_main)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="@+id/main_btn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="评论"/>
</LinearLayout>
2、定义一个弹出框布局(popuwindow)
<?xml version="1.0" encoding="utf-8"?>
<citycircle.com.face.FaceRelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:id="@+id/ll_input"
android:layout_width="match_parent"
android:layout_height="45dp"
android:background="@android:color/white"
android:orientation="horizontal"
android:paddingLeft="12dp"
android:paddingRight="12dp">
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_margin="6dp"
android:layout_weight="1"
android:background="@drawable/shape_bg_white_pinglun"
android:gravity="center_vertical"
android:orientation="horizontal"
android:paddingLeft="5dp"
android:paddingRight="5dp">
<EditText
android:id="@+id/et_sendmessage"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="@null"
android:gravity="center_vertical"
android:hint=""
android:maxLines="4"
android:minHeight="28dp"
android:paddingLeft="12dp"
android:paddingRight="12dp"
android:text=""
android:textColor="@android:color/black"
android:textColorHint="#cccccc"
android:textSize="16sp" />
<ImageButton
android:id="@+id/btn_face"
android:layout_width="26dp"
android:layout_height="26dp"
android:layout_gravity="center_vertical"
android:background="@null"
android:scaleType="centerCrop"
android:src="@mipmap/ic_biaoqing"
android:visibility="visible" />
</LinearLayout>
<TextView
android:id="@+id/btn_send"
android:layout_width="48dp"
android:layout_height="match_parent"
android:layout_gravity="right|center_vertical"
android:layout_marginRight="8dp"
android:gravity="center"
android:text="发布"
android:textColor="@android:color/darker_gray"
android:textSize="18sp" />
</LinearLayout>
<RelativeLayout
android:id="@+id/ll_facechoose"
android:layout_width="fill_parent"
android:layout_height="124dp"
android:layout_below="@id/ll_input"
android:background="#f6f5f5"
android:visibility="gone">
<android.support.v4.view.ViewPager
android:id="@+id/vp_contains"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</android.support.v4.view.ViewPager>
<LinearLayout
android:id="@+id/iv_image"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="6dip"
android:gravity="center"
android:orientation="horizontal" >
</LinearLayout>
</RelativeLayout>
</citycircle.com.face.FaceRelativeLayout>
3、主要代码(MainActivity)
import android.app.ActionBar;
import android.content.Context;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.PopupWindow;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
private PopupWindow mPopWindow;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button = findViewById(R.id.main_btn);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showPopupWindow();
}
});
}
private void showPopupWindow() {
//设置contentView
View contentView = LayoutInflater.from(MainActivity.this).inflate(R.layout.popup, null);
mPopWindow = new PopupWindow(contentView,
ActionBar.LayoutParams.MATCH_PARENT, ActionBar.LayoutParams.WRAP_CONTENT, true);
mPopWindow.setContentView(contentView);
//防止PopupWindow被软件盘挡住(可能只要下面一句,可能需要这两句)
// mPopWindow.setSoftInputMode(PopupWindow.INPUT_METHOD_NEEDED);
mPopWindow.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
//设置软键盘弹出
InputMethodManager inputMethodManager = (InputMethodManager) getApplicationContext().getSystemService(Context.INPUT_METHOD_SERVICE);
inputMethodManager.toggleSoftInput(1000, InputMethodManager.HIDE_NOT_ALWAYS);//这里给它设置了弹出的时间
//设置各个控件的点击响应
final EditText editText = contentView.findViewById(R.id.pop_editText);
Button btn = contentView.findViewById(R.id.pop_btn);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String inputString = editText.getText().toString();
Toast.makeText(MainActivity.this, inputString, Toast.LENGTH_SHORT).show();
mPopWindow.dismiss();//让PopupWindow消失
}
});
//是否具有获取焦点的能力
mPopWindow.setFocusable(true);
//显示PopupWindow
View rootview = LayoutInflater.from(MainActivity.this).inflate(R.layout.activity_main, null);
mPopWindow.showAtLocation(rootview, Gravity.BOTTOM, 0, 0);
}
}