java DialogFragment_Sample

Posted 2021-05-08

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="#ffffffff">

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:id="@+id/imgIcon"
        android:gravity="center"
        android:background="#DA5F6A"
        android:src="@drawable/dialog_error"
        android:scaleType="fitCenter"
        android:contentDescription="@string/error_icon" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/txt_info"
        android:layout_below="@+id/imgIcon"
        android:layout_marginTop="20dp"
        android:layout_marginLeft="4dp"
        android:layout_marginRight="4dp"
        android:layout_marginBottom="20dp"
        android:textSize="18sp"
        android:textColor="#ff000000"
        android:layout_centerHorizontal="true"
        android:gravity="center_horizontal" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="30dp"
        android:text="@string/ok"
        android:id="@+id/btn_close"
        android:gravity="center_vertical|center_horizontal"
        android:layout_below="@+id/txt_info"
        android:layout_marginBottom="20dp"
        android:background="#DA5F6A"
        android:layout_centerHorizontal="true"
        android:textColor="#ffffffff" />

</RelativeLayout>

package com.example.solinari.dialogfragment;

import android.support.v4.app.DialogFragment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {
    EditText txtMsg;
    Button btnShowDalog;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        txtMsg = (EditText) findViewById(R.id.txt_Msg);
       btnShowDalog = (Button) findViewById(R.id.btn_showDialog);
        btnShowDalog.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                DialogFragment dialog =DialogFragmentHelper.newInstance(txtMsg.getText().toString());//將EditText值傳送給DialogFragment
                dialog.show(getSupportFragmentManager(),"dialog");//Dialog出現
            }
        });

    }

}

package com.example.solinari.dialogfragment;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.Button;
import android.widget.TextView;

/**
 * Created by Solinari on 2016/12/4.
 */

public class DialogFragmentHelper extends DialogFragment{
    public static DialogFragmentHelper newInstance(String msg){
        DialogFragmentHelper f = new DialogFragmentHelper();
        Bundle args = new Bundle();
        args.putString("msg",msg);
        f.setArguments(args);//透過setArguments傳值
        return f;
    }
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        getDialog().requestWindowFeature(Window.FEATURE_NO_TITLE);//取消Dialog title列
        getDialog().setCanceledOnTouchOutside(false);//不能點擊Dialog以外區域
        View v = inflater.inflate(R.layout.dialog, container, false);//選擇自定義的layout
        Button btn = (Button) v.findViewById(R.id.btn_close) ;
        btn.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View view) {
                dismiss();//Dialog關閉
            }
        } );
        TextView txt = (TextView) v.findViewById(R.id.txt_info);
        String msg = getArguments().getString("msg");
        txt.setText(msg);
        return v;
    }



}