Question

我有一个google登录按钮，这是xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".login">

    <com.google.android.gms.common.SignInButton
        android:id="@+id/sign_in_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        app:buttonSize="wide"
        app:colorScheme="dark" />

</RelativeLayout>

这是我的Java文件

package com.fireflyelectric.felcosfa;

import android.content.Intent;
import android.graphics.Color;
import android.graphics.Typeface;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignIn;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.auth.api.signin.GoogleSignInClient;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.auth.api.signin.GoogleSignInResult;
import com.google.android.gms.common.SignInButton;
import com.google.android.gms.common.api.ApiException;
import com.google.android.gms.tasks.Task;

public class login extends  AppCompatActivity implements
        View.OnClickListener {

    private static final int RC_SIGN_IN = 9001;
    private GoogleSignInClient mGoogleSignInClient;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);

        findViewById(R.id.sign_in_button).setOnClickListener(this);

        GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestEmail()
                .build();

        mGoogleSignInClient = GoogleSignIn.getClient(this, gso);

        SignInButton signInButton = findViewById(R.id.sign_in_button);
        signInButton.setSize(SignInButton.SIZE_WIDE);
        signInButton.setColorScheme(SignInButton.COLOR_DARK);
    }

    @Override
    protected void onStart() {
        super.onStart();
        GoogleSignInAccount account = GoogleSignIn.getLastSignedInAccount(this);
        mGoogleSignInClient.signOut();
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        // Result returned from launching the Intent from GoogleSignInClient.getSignInIntent(...);
        if (requestCode == RC_SIGN_IN) {
            // The Task returned from this call is always completed, no need to attach
            // a listener.
            GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
            handleSignInResult(result );
        }
    }

    private void handleSignInResult(GoogleSignInResult result) {
        if (result.isSuccess()) {
            final GoogleSignInAccount acct = result.getSignInAccount();
            String email = acct.getEmail();

            /* Compare email if exist in database */

        }
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.sign_in_button:
                signIn();
                break;
        }
    }

    private void signIn() {
        Intent signInIntent = mGoogleSignInClient.getSignInIntent();
        startActivityForResult(signInIntent, RC_SIGN_IN);
    }

}

我的问题是如何放大？与网站中使用的Google登录按钮相同

这是我应用程序中的2个文件。我不知道我需要配置的其他部分在哪里。也许来自Java的代码继承了xml

我希望有人可以帮助我。我是android prog的新手。

Answer 1

我有类似的要求，请尝试以下自定义方法：

private void updateGoogleBtnUi() {
// TODO Auto-generated method stub

SignInButton googleButton = (SignInButton) 
findViewById(R.id.google_button);
googleButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {

    }
});

for (int i = 0; i < googleButton.getChildCount(); i++) {
    View v = googleButton.getChildAt(i);

    if (v instanceof TextView)
    {
        TextView tv = (TextView) v;
        tv.setTextSize(14);
        tv.setTypeface(null, Typeface.NORMAL);
        tv.setText("My Text");
        tv.setTextColor(Color.parseColor("#FFFFFF"));
        tv.setBackgroundDrawable(getResources().getDrawable(
                R.drawable.ic_launcher));
        tv.setSingleLine(true);
        tv.setPadding(15, 15, 15, 15);

        ViewGroup.LayoutParams params = tv.getLayoutParams();
        params.width = 100;
        params.height = 70;
        tv.setLayoutParams(params);

        return;
     }
  }
}

希望有帮助。

Answer 2

请参阅以下代码段。由于SignInButton通过layout_width参数设置了大小，因此将按钮的wrap_content设置为app:buttonSize。

<com.google.android.gms.common.SignInButton
        android:id="@+id/sign_in_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        app:buttonSize="wide"
        app:colorScheme="dark" />

您可以从以下各项中设置app:buttonSize：wide，standard和icon_only。

您还可以通过编程方式设置Button的大小：

// Set the dimensions of the sign-in button.
SignInButton signInButton = findViewById(R.id.sign_in_button);
signInButton.setSize(SignInButton.SIZE_STANDARD);

Answer 3

使自定义登录按钮看起来像这样，并向其添加侦听器。

增加Google登录按钮的高度和宽度

3 个答案: