[移动开发]使用dialogfragment实现splash闪屏效果

step1: D:\workspace\SplashDemoTwo\app\src\main\java\com\mondor\splashdemotwo\MainActivity.java

package com.mondor.splashdemotwo;

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button btn_scan_dialog = findViewById(R.id.btn_scan_dialog);
        btn_scan_dialog.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                TestingDialogFragment testingDialogFragment = new TestingDialogFragment();
                testingDialogFragment.show(getFragmentManager(), "");
                testingDialogFragment.onSetClickDialogListener(new TestingDialogFragment.SetOnClickDialogListener() {

                    @Override
                    public void onClickDialogListener() {
                        Log.e("TAG", "onClickDialogListener： ");
                    }
                });
            }
        });


    }
}

step2: TestingDialogFragment

package com.mondor.splashdemotwo;


        import android.app.DialogFragment;
        import android.content.DialogInterface;
        import android.graphics.Color;
        import android.graphics.drawable.ColorDrawable;
        import android.os.Bundle;
        import android.util.Log;
        import android.view.KeyEvent;
        import android.view.LayoutInflater;
        import android.view.View;
        import android.view.ViewGroup;
        import android.view.Window;
        import android.view.WindowManager;
        import android.widget.ImageView;
        import android.widget.TextView;

        import androidx.annotation.Nullable;

        import java.util.Timer;
        import java.util.TimerTask;

public class TestingDialogFragment extends DialogFragment {
    private Timer timer;
    private TimerTask timerTask;
    private SetOnClickDialogListener mSetOnClickListener;
    private int age = 5;

    public void onSetClickDialogListener(SetOnClickDialogListener listener) {
        this.mSetOnClickListener = listener;
    }

    public interface SetOnClickDialogListener {
        void onClickDialogListener();
    }

    @Override
    public void onStart() {
        super.onStart();
        if (getDialog() != null && getDialog().getWindow() != null) {
            Window window = getDialog().getWindow();
            WindowManager.LayoutParams params = window.getAttributes();
            params.width = WindowManager.LayoutParams.MATCH_PARENT;
            params.height = WindowManager.LayoutParams.MATCH_PARENT;
            window.setAttributes(params);
        }
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        if (getDialog() != null && getDialog().getWindow() != null) {
            getDialog().getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
            getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE);
            //点击外部空白处不消失
            getDialog().setCanceledOnTouchOutside(false);
            getDialog().setCancelable(false);
            //点击back不消失
            getDialog().setOnKeyListener(new DialogInterface.OnKeyListener() {
                @Override
                public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
                    if (keyCode == KeyEvent.KEYCODE_BACK) {
                        return true;
                    }
                    return false;
                }
            });
        }
        View mView = inflater.inflate(R.layout.activity_splash, container, false);
        TextView iv_ad = mView.findViewById(R.id.iv_ad);

        iv_ad.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (age == 0) {
                    getDialog().cancel();
                    if (mSetOnClickListener != null) {
                        mSetOnClickListener.onClickDialogListener();
                    }
                }
            }
        });
        timer = new Timer();
        timerTask = new TimerTask() {
            @Override
            public void run() {
                age--;
                iv_ad.setText(String.valueOf(age));
                Log.e("TAG", "time_data:" + age);
                if (age == 0) {
                    iv_ad.setText(String.valueOf("跳过"));
                    releaseTimer();
                }
            }
        };
        timer.schedule(timerTask, 0, 1000);
        return mView;
    }


    private void releaseTimer() {
        if (timer != null) {
            timer.cancel();
        }
        if (timerTask != null) {
            timerTask.cancel();
        }
    }

    @Override
    public void onCancel(DialogInterface dialog) {
        super.onCancel(dialog);
    }

    @Override
    public void onDismiss(DialogInterface dialog) {
        super.onDismiss(dialog);
    }


}

step3: shape 圆形按钮

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >
    <solid
        android:color="#E8EBF2"/>
    <corners
        android:radius="45dp"/>
</shape>

step4: 首页布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/qrcode_root"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <Button
        android:id="@+id/btn_scan_dialog"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:text="闪屏" />

</RelativeLayout>

step5: 闪屏页布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="false"
    android:orientation="vertical">

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="centerCrop"
        android:src="@mipmap/ad" />

    <TextView
        android:id="@+id/iv_ad"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_alignParentRight="true"
        android:layout_marginTop="10dp"
        android:layout_marginRight="10dp"
        android:background="@drawable/bg_go"
        android:gravity="center"
        android:textSize="13sp" />

</RelativeLayout>

end

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